Finally upgrading to digital, could use some advise

[Frog]

Welcome to the forums!

Looks like you've covered your bases pretty well in my limited experience.
Be aware that your quantary lenses will also work on the D90 so whether you want to keep them or not is up to you but you have all their ranges covered with your list and I'm pretty sure the lenses you plan to buy are better than the quantarys.
I have the sb800 and am happy with it but don't use it enough to justify what I paid for it.
Many use the sb600 and are very pleased with it.
I use the Gary Fong diffuser and it works very well but a lot of people just make one out of an old milk jug or something.
You've got plenty of memory there unless you're shooting constantly for long periods.
On a 2gig card, I get 165 raw files so you'll be getting over 300 on each of those cards.
Happy shooting and stick around and show us your stuff.

[Franglais]

OK that sounds good. Just a couple of points to add.

You might find you need the flash less that you expect. I have the D300 which has a very similar sensor to the D90 and 3200ISO is quite usable. If you want to use the diffuser thing a lot then remember that one comes with the SB800 which might make you prefer it over the SB600. Stick with a compatible Nikon flash - the Nikon system is really sophisticated and you can't be sure that other manufacturers flashes are really compatible.

For your memory cards - remember we're talking about SDHC here, not Compactflash. I wasn't aware that SDHC class 6 could do 30MB/sec but then I don't use Sandisk

[Grandpaw]

Personally I would leave off the grip. My D80 goes forever on a single battery and weighs much less than it would with the grip added. I don't find it useful myself but I know others will disagree, Jeff

[pafindr]

Frog
Thanks for your input!
I want to upgrade my lenses because the Quantaray's aren't as good as would like them to be. And it's time to have better lenses
I feel that the SB-800 would be overkill for me because I do a lot more wildlife and nature than indoor or portraits. I think the SB-600 would be good to start out with and if I find that it doesn't do the job in the future I can upgrade later on to something better.

Franglais
Thank you for your input too!
When I was looking at memory I didn't know that I couldn't use Compact Flash and you helped me avoid a big mistake.
This is what I found for memory http://www.adorama.com/IDSSDX34G.html

Is Sandisk good for photography or would I be better off with something else. I use Sandisk for most of my mini memory needs and I've never had any problems with them.

Grandpaw
Thanks for the input, I'm going to put some more thought to the grip. I'll need more input too.

[Franglais]

Franglais
Thank you for your input too!
When I was looking at memory I didn't know that I couldn't use Compact Flash and you helped me avoid a big mistake.
This is what I found for memory http://www.adorama.com/IDSSDX34G.html

Is Sandisk good for photography or would I be better off with something else. I use Sandisk for most of my mini memory needs and I've never had any problems with them.

You can't go wrong with Sandisk. You can certainly find a cheaper manufacturer but SDHC cards are already pretty cheap. The one you indicate is Class 6 which is the fastest. Modern DSLR's have a huge internal buffer to store a burst of shots and it's unlikely that you would ever need the speed of the card - except if you're shooting a long video.

[pafindr]

You can't go wrong with Sandisk. You can certainly find a cheaper manufacturer but SDHC cards are already pretty cheap. The one you indicate is Class 6 which is the fastest. Modern DSLR's have a huge internal buffer to store a burst of shots and it's unlikely that you would ever need the speed of the card - except if you're shooting a long video.

So would a SDHC like the SanDisk 4GB Ultra II that has a 10 MB/s be just as good as the one with 40 MB/s. I'm not interested taking video so I'm not worried about that.

[Franglais]

So would a SDHC like the SanDisk 4GB Ultra II that has a 10 MB/s be just as good as the one with 40 MB/s. I'm not interested taking video so I'm not worried about that.

The II generation would probably be just as good as the III generation when you're taking shots, especially if you're shooting JPG. However it would be slower to copy the files to your computer. These things are relatively cheap. I would go with the best.

BTW you haven't said if you're shooting RAW or not. If so, you'll need a RAW editor.