Here's some Italo stuff I like. Nothing super rare or anything.
Stopp - I'm Hungry has an excellent bassline and nice 808 drums.
Here's the B side, which is a bit more experimental.
Here's some stuff by Amin Peck I quite enjoy.
You've probably all heard this, but fuck it's just too good (BWH):
Nice bassline on this one. Are the vocals awesome or embarassing? (Pineapples)
Here's that Gay Cat Park tune someone mentioned earlier, it's genius.
This is pretty cool, too (Crazy Gang):
As far as comps go, the Mixed Up In The Hague comps are obvious but essential. They aren't strictly italo, though. The old "Best Of Italo Disco" comps from ZYX are ok too. First one is great, and it sort of goes downhill after, but there's still good songs on all of them.