I use WHDLoad, but I haven't registered yet! I will do one day, honest!
It's brilliant though, I would use it more but my HD is a bit small, and of course the problem of not being able to find many original games - they are SO hard to find (though I have installed some of the ones I've got).
I really want to play Dynablaster again but obviously the copy I downloaded was
a cracked copy and it wouldn't work.
Apart from that though, it's great!