You can never have enough HDMI ports, what does that gaming rig you just put together have? Two? And that MacBook Pro of yours doesn't have any at all. But, if there's a DisplayPort hanging around, you can add a pair HDMI jacks with an adapter from Zotac.
This little dongle turns any DisplayPort or Mini Displayport into a dual HDMI hookup, with support for two 1920 x 1080 monitors -- provided your graphics card can handle it and the HDMI group doesn't kill the product first. Price $50.