Battery grip for a 350D

[almo]

I am toying with the idea of getting a Canon BG-E3 Battery Grip for my Canon EOS 350D.
I am looking for the ability to keep my camera going for longer, as well for the ability to have a more comfortable grip when taking vertical shots (not sure if thats the right word!! You know, when you turn the camera sideways!! LOL!!).

Hopefully someone can help me out with their experiences. Will it be a waste of money? Should I just buy a spare battery and keep it in my pocket and change it when I need it? A little fiddly with gloves, but I am never usually in that much of a rush anyway! I do like the advantage of being able to use 6 x AA batteries as I can get these through work (sssshhh, mum's the word!!) plus also the idea of having a better grip in the vertical position when using my heavy Sigma 135 - 400mm.

Am relatively new to the site, but thought I would just add that the advice here is really good and I have learnt a lot already from you guys - without having to ask!! Thanks.

Advice enthusiastically welcomed!!

Jim

I have the battery grip for my D60 and I love it. I can't use my camera without it anymore. It feels like half a camera without it on. I makes the overall feel of the camera much sturdier, and yes, vertical shootong becomes much much eaiser.

I say go for it!