Hey guys, I've been waiting to scrounge up the cash to buy my first DSLR for a while now. I'm a (nearly) starving college student, but I'd dead set on taking on photography as a hobby. I have used DSLRs for years, so I know what I'm doing, but this is the first time I've had the money to invest in my own gear. I had my heart set on getting a used Canon 40D for around $675ish when I had the cash, but recently the opportunity came around to buy a really gently used Nikon D200 for $475 body only. I've been talking to the seller, and he's a hobbyist who has put only 3-4k actuations on the shutter, and it looks PRISTINE overall. I suppose my question to you guys is, should I pull the trigger? I've used a 40D and I love it, but I've also been impressed by the Nikon D300 and D90, so I could care less about Nikon vs. Canon as long as IQ is solid. I've looked around and $475 seems like a really good deal, not to mention this guys going to let me snap some shots before I buy... Any thoughts?