I'm a little torn over what do with my mining rig and MBP.  Bitcoins come in so slow now but they are quickly rising in value, so every little bit still counts.  But, I'm thinking it might be a good idea to own some "also-ran" coins, just in case others do even better over time as they play catch-up with bitcoin.
Litecoin is the current second and I'm thinking that Freicoin is so different and appealing to some very-true-believers that it might do something crazy one day and right now I can mine a ton of coins.

Lakehead