keep in mind that i7 = triple channel ram, so those who suggest 8/16 gigs with an i7... Not doable. You can do 3, 6, 12, or 24 DDR3 with an i7 CPU. I think 12 is a good number, but 6 would be very usable as well(i have a quad core with 8 gigs, very nice system). A budget of £2000 seems quite high, for that price you should…