If you are on a budget I would highly recomend looking on Ebay, you can get very good deals, especail if you are willing to wait a little.
You can also find ski poles, helmets, jackets, and just about anything else on there.
For boots I would do a little research, and find a ski shop that has a good record (and awards) for bootfitting. Buying boots on Ebay, is a bad idea, even if you think they are the right size and a good deal.
If you have a little more money to spend, Gary posted a good link to a ski shop where you can get some very nice race skis for very cheap.
Gary, I forget where that link was, maybe you can post it again.
Also if anyone else has good places to get skis and ski related stuff, share.
SkiDood