I have the Sony Vaio Z (2.4ghz Core 2 Duo) and I can get about 6 hours with moderate usage with Wi-Fi (no flash), and about 8 hours using Ethernet. Also, I got

I have the Sony Vaio Z (2.4ghz Core 2 Duo) and I can get about 6 hours with moderate usage with Wi-Fi (no flash), and about 8 hours using Ethernet. Also, I got it on sale for $500 almost two years ago. :-]