This....
Gigabyte GA-73PVM-S2H, NF 630i, S 775, PCI-E (x16), DDR2 533/667/800, SATA II, SATA RAID, VGA, uATX £39.39 £46.28
or this....
Asus P5K-VM iG33, S775, PCI-E (x16), DDR2 1066/800/667, SATA II, uATX, On Board VGA £52.40 £61.57
Just a mild overclock maybe. Well the Gigabyte is cheaper, both are quad core ready, IGP, Firewire.
Any benefit of the Asus?