My other bit of advice is to get a custom remap from a reputable place near you, be it R-Tech or AMD Tuning or whoever. That way if you get problems or aren't happy then you can take just a short drive back to get things sorted.
I have an AMD Tuning map (which I love and has been faultless), with a reported 35% extra torque than factory figures and my clutch has held up fine so far over the past year so I wouldn't worry about it too much truth be told. You'll wear it out faster yes, but only if you drive hard all day every day.