That is one option.
The other, much simpler (yet less profitable) option is to switch to a pool with a fair reward system. Eligius comes to mind, and eligius has very low variance as well (that means: steady income).
Slush and BTC Mine are less vulnerable to pool hopping, but they have a higher variance. (That means luck plays a bigger role for you. If you're unlucky, you might earn less than at deepbit. It should average out over longer time periods.)


PPS at deepbit is a really bad idea. It has about 10% less expected income compared solo mining. You probably earn more at proportional deepbit, even with the pool hoppers. Eligius is similiar to PPS, but without the fees.