The dual 60s will give you about 111GB useful space. The 80s are just starting to ship (you may have seen my other thread about that one). I will let you know how it goes.
As for being on the leading edge of things, I just like having all of my music and audio available all the time, and the 60s were the only drives that let me do that, until very recently when it has been a bit tight. It is also convenient in the office, since I have it connected to the network there.
Plus I like experimenting!!!