Laptop or desktop? That probably depends on your needs. If these comes with win7 then that sound like a pretty good bargain.
Desktop, HP Compaq 6000 AiO, Pentium Dual-Core E6600@ 3.06GHz
Desktop, HP Compaq 8000, Inter Core 2 Duo E8400 @ 3.00 GHz
Desktop, HP Compaq 8200 AiO, Intel Core i5 2400S @2.50 GHz
Desktop, HP Compaq 8200 and 8100 SFF, Intel Core i5 2400S @2.50 GHz
Laptop, HP 6560 and HP 8460, Intel Core i5 2520M @2.50 GHz
I realize these aren't the best, but my school is selling used computers for $25, so why not.