Man I love Bioware ... I grabbed Mass Effect 2 and have played about 10 hours worth of it so far and it's a killer game. I never played Mass Effect 1 before this so I'm probably missing a good chunk of the story, but I'll be playing it after I finish this one (and play through all of the expansions for it, hehe) to catch up. It's pretty cool how you can import your characters from a previous version of the game into the newer version to continue playing him, including all of the consequences for the decisions you've made in the previous version, so at least when Mass Effect 3 comes out, I'll be able to import this toon into it.
The game kind of reminds me of the KOTOR's, but updated and with a different storyline, which is a perk for me, since I loveeeeed the KOTOR's.