Buy.com cut its price on the factory-refurbished Compaq Presario sr5413wm Athlon 64 2.7GHz Desktop PC to $229.99 with free shipping. That's a $20 drop since our mention from two weeks ago and the lowest total price we've seen. It features an AMD Athlon 64 LE-1640 2.7GHz processor, 2GB RAM, 250GB Serial ATA hard drive, dual-layer DVD burner, and Windows Vista Home Premium. A 90-day HP warranty applies.