I recommend Microtech. I would look into their LTX-8 system, they are a budget system. Running in under $900, provide all the options of say a Haltech and come pre-programmed for much less.
Here is a link to a guy selling one on the trader. http://www.gopartstrader.com/cgi-bin/suite/classifieds/classifieds.cgi?request=detail&ad_id=110133&category_id=&sub_id=&variable_file=&page=&set=1&position=3&total_count=13&website=default&prev_action=search&session=3efc2c83586f44b5
Check out AGP Turbo. The RS49 T3/T4 hybrid would make a good choice. It also uses a 50 trim compressor. Also check out Slowboy Racing and their G57 turbo.
Yea, it's pretty crazy. The insurance company's are shady as hell, but I am paying about the same amount for my 1G DSM. Go out and buy the car, don't let insurance hold you back if it's what you really want.