well its an Intel like you wanted, and if I spec'd you a i3 socket 1156 system, it would be cheaper, but with no future, with this being sandybridge all the cpu's will just slot in.
you can find the 2400cpu performance results in here - http://www.xbitlabs.com/articles/cpu/display/core-i5-2500-2400-2300.html
Intel Core i3 540 3.06GHz (Clarkdale) (Socket LGA1156) - Retail £99.98
Gigabyte GA-H55M-UD2H Intel H55 (Socket 1156) DDR3 microATX Motherboard £69.98
OCZ Special OPS 4GB (2x2GB) DDR3 PC3-12800C8 1600MHz Dual Channel Kit (OCZ3SOE1600LV4GK) £31.19
I'm really sorry if this is a stupid question ... but is 1600MHz the best choice for this combination? Will it work at that frequency? Intel site says that the correct RAM for this cpu is max 1333.
Could you please explain this choice ... again ... I'm sorry if this is a stupid question. I am obviously missing something.
Thanks