a k CPU on a motherboard you can't overclock on? may as well drop the gelid tranqilo and change the CPU to the non-k 2600, this'll free up ~£20.
No but it does use the 3000 gfx chip rather than the 2000, and seen as how theres no dedicated card that was the reasoning for its inclusion
would suggest the p8z68-m pro £110 but it's out of stock, going with the p67 equivalent £95 will require a dedicated graphics card as p67 doesn't have onboard VGA support.
you could get 2x 8gb kit of the ram, people may say it's overkill but at these prices why not?
maybe a better psu 500/550w to allow the addition of a decent graphics card should the op decide in the future they want to play games on it?
if you can live with non-modular you have the lepa w series 500w for the same price as the currently suggested psu(£48), or for £8 more you have the ocz zs 550w, just a couple of suggestions but there are other options as well.
Why not add a SSD and Blu Ray writer while you;re at it too? If the OP doesnt want to game, why spec him for a possible future change of mind???