I've had some of those before, some Reapers too. I also grew some Ghost peppers, and tried at a chocolate habanero variety but I couldn't get the seeds to germinate so those were ultimately a failure. One thing I noticed about the superhot cultivars is that while they are HOT, often their flavor is not pleasant if eaten just by themselves. They really do add a nice heat to sauces, jams/jellies, etc. though.
I've done pretty well growing regular chilies like jalapeños and habaneros, anaheims and poblanos, Hungarian wax and such.
I love me some peppers!