This should be in computers...and will likely be moved soon...
Beyond that. I've got an HP Pavilion dv6000 with a Core 2 Duo (like 1.6 Ghz) with i think around 4gb RAM and a 250 Gb HD. Nice computer, Vista hasn't been too problematic except for being a little laggy...
Stores to check out:
etc. Look for the ads from places like Office Max or Office Depot, they have some good deals.