Adding Keyless Entry.

I have a 95' Cavalier and it has power locks but not windows. I was wondering if I would have any trouble adding key less entry to it....

Your best bet (cheapest) would be to get a aftermarket keyless entry system. Most just tap into your current power door locks via a relay. Here is an example (http://www.crutchfield.com/S-gXliV3sHc8z/cgi-bin/ProdView.asp?g=802&I=514REC11) of such a system. You might also check eBay but you also get what you pay for (in terms of support that is).