If you're looking for cheap wheels do not get off brand because all you're going to end up with is bent and pitted rims. You said you like Sparco's and the Assetto Gara's are both inexpensive and decently well made, they also come in whatever colour you want too.
Buying wheels for the MK3 sucks because of our bolt pattern. You basically have a bunch of Taiwanese/Chinese crap, some really expensive wheels, and a handful of reasonably priced options that look good.
I have a set of Team Dynamics on my car and they are awesome. Perfect Circle is doing a discount buy right now too: