If you're set on getting boosted, I wouldn't go much larger than a GT25 or 7psi of boost untill you can either get some money or trade in your car. Here's a decent one so far for under $3grand which is quite a shade different than what D-series kits were going for 3 years ago. And they've come a long way in design.
http://superstreetonline.com/plugged...9_d17turbokit/
Also, be sure to stop into
www.turbod16.com if the site comes back up, looks like it's down.
There are a few people on there with the d17 block.