yeah i use my 4850 at home but it always crashes my client which sucks.
oh and to orangegator, i have done my reading and i don't think you have:
From their website:
We strongly suggest people run this client on 4-core boxes. While it will run on 2-core boxes, we have noticed some potential problems (we are looking into these issues now).
it is not about getting points, so while yes i can run it on a dual core it is no help to the team if they get potentially wasted data returns.