I'm going back to school for the first time in eight years this fall (taking 5 classes beside my full time job) and decided that having a laptop would be a decent investment. I'm not looking for anything powerful, just something that's reliable, but not too old, and if possible with wireless capabilities already.
So...tell me what you got, and what you think it's worth. And just as a starting point, I'm definitely not paying any more than $500. (I'm only considering that high just so it's worth keeping for awhile.)