What you're probably looking for is a Dye Sublimation photo printer like this one from HiTi usually under $300 Kodak and Mitsubishi also make them. Background stands get abused A LOT when taken on location, so go for the mid to high end ones ($169.00+/-). Lighting, you get what you pay for, $200 strobes aren't as reliable or consistent as $1000.00 heads and Fluorescent/tungsten won't have enough power in a dark Gymnasium unless you're shooting with a $1,500.00 lens and a $500.00 tripod. To buy a pair of 580ex's and umbrellas/stands you may as well spend a bit more on strobes though. You can get by without the pocket wizard if you are the only one shooting. I often just use a sync cord and set the optical slave on the second head (this doesn't work when there are other strobes firing in the same room though - they will trigger your lights). Backdrops can be improvised - muslin at JoAnn fabrics is CHEAP in 9' & 10' widths and you can dye or paint them yourself with regular latex house paint if you have a tight budget.