Being I'm sure your thinking of spending it on camera gear, the first question would be what are your interests? Ultimately, that's what really matters.

For me, a used 1d to back up my 10d would be just fine. Plus, I do a lot of indoor sports, the 10d's focus isn't the best in these conditions. 4Mp and a 29x19mm sensor it has plenty of resolution to make 11x17's. That's fine for me.

Then I have been thinking of selling my elan 7 and purchasing a voightlander bessa R2 with a 35/1.7 ultron. I still like film for various subjects. But rarely us film anymore. I can survive with the 35mm, the 1.7 means I can get away with 400iso even in low light, and the biggest reason is it can fit in my camera bag Now I don't have to lug two bodies with me.

As far as lenses, I pretty much have the ranges I need covered. I even have one L lens (and three sigma ex lenses)! If I had to chose a lens, it would probably be a 300/2.8L. In reality I would probably opt for the 120-300/2.8ex lens. Again, for indoor sports.

No, I haven't thought about this!

Mike