Has anyone bought from the Wis. parts vendor that
seems to have very good prices, almost to good?
I was wondering if the parts are as "good" as other vendors. Bad enough buying parts once,
let alone buying a second or third time because
of poor quality. Looking for a deal is not a bad
thing, either.

I'm guessing you'll need to be more specific.

http://www.megapartsusa.com these the guys your talking about?

Mega parts is a member here. I have always had good luck with them.

Roy and Jamie are great to deal with. They have great prices and usually only carry the better parts if there is an option. They are pretty nearby for me so I get alot of stuff from them.

Mega Parts gets a Thumbs up from me.

There are two in WI that I know of. One being us. We try to carry the best parts avaialable.
If you are refering to Van's I have been happy with the parts we get from them. There are a few pieces of theirs I do not carry because we have a product that is more correct then what the make, but I have been start to carry more them as well because not everyone is doing a concours car and don't mind saving a couple of bucks.