Probably one of the first "accessories" you will want to buy is a bigger memory card! Usually, the memory card that comes with a new camera is just not big enough (well, not big enough for ME, at least
). I have gotten good deals on memory from Sam's Club, Best Buy, Circuit City, and various online sources. The prices fluctuate wildly, so it really is a matter of shopping around for the best price - one day Sam's may have the best price, and the next day Computers4Sure.com may have the best price. Also, always look out for mail-in rebates - you can get memory almost FREE if you find a good sale along with a mail-in rebate.
How much memory do you need? Well, you'll probably want a memory card big enough to hold 100 or more photos at the highest resolution setting on your camera. Your user's manual will tell you how much space a single picture takes up on the memory card, and you can go from there. 100 pics may sound like a lot, but say you're going on a tropical vacation for a week, and you aren't going to have a computer around to download pics from your camera - that memory card will fill up surprisingly fast. When I went to Puerto Rico for 5 days, I took a couple hundred pics! So buy the biggest memory card you can afford.
Other accessories you might like - a carrying case of some sort, to protect your camera. Perhaps a tripod (I find that I don't use mine very much though). An extra battery is a MUST. (And keep that extra battery fully charged, and in your carrying case.) Maybe some lens cleaner and lens wipes.
Those are really the main things. Lots of good online sources for that kind of stuff, but before you buy from any online store, check their rating with Bizrate.com.
