a dual core i7 laptop and two weeks of non-stop mining, and i got a block ! woot. now i just have to wait for the price to rise again. 
ypool might get you 2+XPM/day.
no more than 0.2/day I think
in 25.5 hours I went from 5.28 to 13.66 XPM on ypool. 4 systems running mumus' 3.0 miner. With the pool miner I had a total of 11.5k PPS, mumus says I'm getting almost 90, but I think the calculation is off. I compared Cabin's miner to mumus' and the SPH are very similar. Haven't tried the pool miner for shares, but I see they have .35 out.
You had a SUPER lucky streak then. You're the only one reporting these large gains. I am using Mumus' miner over 5 machines with slightly less PPS and in 25.3 hours made 0.933045 XPM. Hitting high share values has a lot to do with it. I wouldn't expect that your trend to continue.