I am in the same boat, except I used to overclock a number of years ago and then stopped.
I have the same motherboard and same CPU, I was about to purchase a I7 or I5 setup, but others on here have said push the Q6600
I have a Noctua HSF, what settings should I go for in the BIOS, just up the FSB and change the RAM settings? RAM is Corsair 6400
Leave the voltages on auto?
As if this goes to plan I may invest in another 8GB RAM, SSD and a replacement GFX card (9800GT)
Obviously more components less stable O/C?