What coin is best to mine for CPU?

[Kenshin]

Anyone knows what's the current most profitable CPU ONLY coin to mine on? I tried several but they all seem to be similar in terms of profitability.
I tried WDC , SRC , YAC , FZ , YAC - yac was great but since cryptsy dumped it for some reason I stopped mining it , I wish it comes back though...
Any suggestions? I got a few i7 rigs waiting to mine

I got a few i7 rigs, and I am mining Quark.

Now I changed to Frozen. 

[semisyntheticpsy]

Bump

[Kenshin]

I have changed to Vertcoin now.

[griffinriz]

HVC and DOUG coin.

[Lorenzo]

I have a Dell laptop with a 1.4GHz Pentium M processor. I've heard that this is about as powerful as a 2-2.5 GHz Pentium 4. The graphics card is integrated so I'm guessing its pretty much useless for GPU mining. Can I mine any CPU coins with this?

[semisyntheticpsy]

HVC and DOUG coin.

Im mining HVC atm