[masraum]

Craig, here's a good page with a synopsis of EOS lenses

http://bobatkins.photo.net/photography/digital/10d300dlenses.html

Trying to max out the focal range and budget, here
50mm f1.8 <$100
EF-S 17-85/4-5.6 IS USM $525
70-200/4L USM <$600 pro series lens

These are really nice lenses, especialy the 70-200 "L" lens. (the "L" lenses are the canon pro grade lenses)

Personally I always find 200mm just a bit short, and I like to tinker with macro photography and my budget wasn't that big.
So I recently bought the Sigma 70-300 APO DG macro lens, $200. The quality is great for the price, it does half life size macro, and it goes as wide as 300mm
I have the "nifty 50" which is really great. If I could afford lenses that fast I would. I also have the kit lens, 18-55. It does display some vignetting at the wide end and distortion, but fortunately Photoshop can fix that.

Here's a current thread on the EOS lens board called "Best Everyday/Walking Around Lens"
http://photography-on-the.net/forum/showthread.php?t=124827

A great place to buy photo equipment, good prices, good reputation, good service, www.bhphoto.com