I got 54 Mh/s on my Dual Xeon E7350 system (16 threads).  I'd expect you'd get slightly less that 2x that see as you're running 2.4GHz instead of 2.93GHz.

I'd highly recommend a pool as the difficulty increases will make it extremely hard for the big payout.  Better to settle for smaller timely payouts.

For maximum bitcoins/hases, I'd suggest a free 0% pool like BTC Guild.