You also might consider diversifying your investment by picking up a USB miner.  I have two of them and they are nice little earners, albeit as hot as bunsen burners.

You can buy them here: https://bitcointalk.org/index.php?topic=223916.msg2353374#msg2353374

It looks like kosmo just got some in stock and he is ready to ship ASAP!

Seamless integration with BitMinter mining pool.