Adam @ aieonline.com was where i got them from. $125!!! Buuuuttt cheap! I had to wait a little longer (about 3 weeks) for them, but he had informed me of this previously...but for that price...it was a good deal. A couple others from here @ ha.net also got theirs from him.
As for the stock shocks, wear would definitely be faster than on stock springs, but it's doable and the ride's still pretty nice after dropping (i.e. not bouncy at all). The springs have a nice progressive rate to them. I've been on them since beginning of february...