I purchased my Neuspeed sport springs from Import Auto Performance , their prices are pretty competitive. Also, I think they might be a vendor here on HAN under the user name peteriap so maybe you can hit them up on a discount. Autocarparts.com is a good website, I purchased quite a bit off them.

I'm sure the Comptech springs are great but ask yourself if a 1.25' drop is going to be enough. The Comptech springs also are the only springs I know of that have both linear and progressive rates. That would make a great compromise between daily driving and autocrossing.