Guys, thanx a lot for the replies. Much appreciated.
I've ditched the 4850 and the display is running off the HD 4870 1GB.
I've ordered the Accelero S1 rev. 2 and planning to slap 2 120mm fans (yeah slightly an overkill but the additional one could help for cooling the VRMs as well!).
I'm thinking of flashing the BIOS with a slightly bumped voltage. Can you guys suggest me on how to go about with the same? I've no clue as to what volts should be entered.
A screenshot could really help.