e-brake in a parking lot is a good way to start, just to get the feeling of what it's like to have the ass end of your car step out. but don't rely on the e-brake for all of your drifting career, or you'll most likely be laughed upon.
any websites for parts you may need can also be found in the handy FAQ. i posted at least 20 240SX part-company websites.
www.takakaira.com and
www.autoimaging.com are probably your 2 best bets for awesome, JDM, non-rice body kits.