I was recently toying with the idea of replacing my ageing Core 2 Duo 3.16GHz PC with a new Core i3 machine and even got as far as ordering the processor, ram and power supply which they were on offer. However, I'm now looking at the possibility of leasing a couple of iMacs for our office instead. We do web hosting (which is mostly admin/support) and web design but I'm just wondering whether a 21.5" iMac would be big enough for web design or would I be better off getting 27" iMacs? Is there anyone here that does web design on 21.5" iMacs? How do you find it?