Well, I bought an SVT last week. CDNSVTGUY's black '98 with 72,300kms (now 73,000). Runs great but needs new tires and I've got some kind of tire or bearing noise (hoping it's tires). Also got a pretty scratched up front bumper, but other than that, pretty good condition. Paid ~$9650 for it. I just started a new job, so that's why I decided to get a car...and the SVT is still the only car I like in my price range (~$10K).
My first mod was to install the stereo I had in the 99' SVT that got totalled last November. This time, though, instead of installing the two 8" subs in a box (one under the passenger seat and one in a small box in the trunk), I had both of them put in the rear deck. Sounds a bit better and now I don't use up any of the space in my trunk. I also had the stock exhaust tips swapped for larger ones...I can't stand the look of the stock pipes in those huge cutouts.
As for my next mods...I'll keep those secret until they're done and I can get some pics up.

(Nothing big though, so don't get too excited...ha ha)