So i have about 10-12K (canadain) to spend on a car and i'm not sure what to be looking at.. i've always wanted a skyline but i'm not sure about left hand drive, so i also want to look at other cars, i'm open to almost anything , rwd,fwd,awd, 4door, 2door, hatchback, etc etc. i'm willing to upgrade/mod in the furture, oh and i'd like it to be fairly fast.
are their any other questions i should answer?

A Skyline would always be on the top of my list if they were available to me.
With that car, it shouldn't really matter what side you're driving on.

well there are a few skylines on here.. whitch would be the best to go check out http://www.canadatrader.com/result/result.aspx?searchtype=adv&category=4000&mk=NISSAN&md=SKYLINE&pro=BC&type=province#

there are also many import sites.. but with about 12k ... i'm not sure what i should do..

The link doesn't provide your search results so you know.

Well being in the US almost all my life I can't say that i've had any driving experience with a Skyline. But just like buying any used car, head to an informative forum on the vehicle that can give you issues to look for, get a CARFAX report or equivalent for vehicle history, have it inspected by a trustworthy mechanic as well as yourself, and test drive it. Doing these should give you a good idea on whether a vehicle is a good buy or not.