Maccer101,
"Bear in mind that the board would now cost £53 if you got the Bios changed, you could by a P35 board like the Asus P5k SE/EPU for £55 which according to the Asus website all Bios' supports the E7200 since production."
Yes, though the specification page on the Asus site says:
Please update the latest BIOS to support Intel 45nm CPU
However, when pricing the GA-P31-DS3L on Scan, I noticed a 'New' mobo, the GA-EP31-DS3L, which is a newer variation of the other mobo with Dynamic Energy Saver (DES), competing with Asus's EPU feature. Gigabyte are adding this feature to some current designs, and will include it in new future designs.
Anyway, the GA-EP31-DS3L is only a quid dearer than the GA-P31-DS3L, and Gigabyte site says its Bios is at version 'FB' (initial release on 5th August 2008) and that this is the version required for the E7200 (and most other CPUs supported).
So, the EP31 model may be the better choice. Whether I would enable the DES feature would depend on stability, which you alerted me about, in the Asus case.
James