www.reptilebasics.com

Get a Johnson Controls or a Ranco thermostat(or a Herpstat/Helix if you want), and 1-2ft of 11" flexwatt, and have Rich wire them for you(you have to buy the connectors and wire separately, less than $5).
-JC Controls or Ranco- $75
-1 or 2 ft of 11" flexwatt - $4-7
-Wire and soldered connections - $5

Then you'll want to go to WalMart and get a digital thermometer w/hygrometer(AcuRite brand, $12), as well as a hobby soldering iron which will be used to make holes in the sides of the tub you'll be using.

Then go to the car department and find the bungee cords. Depending on which 32qt tub you'll be using, you will want one bungee cord to wrap around the center of the tub so the snake can't push it up and get out. $2

Then hides can be found in the garden center of Home Depot or WalMart. Find the plastic pot saucers(sit underneath the planter to catch water, looks like a bowl). You'll want 2 of those, either 6-8" diameter depending on the size of the snake. They cost maybe $0.50 apiece. Just cut a hole in the side of each.

Water bowl is your choice, just make sure it isn't easily tipped and doesn't have much surface area. Maybe 4-5" max in diameter and 2-3" tall. I use the plastic VanNess crocks at WalMart, they run $3 or so.

and bedding is your choice also, I just will suggest not using a "snake" specific bedding, such as Reptibark or Zoo-Med anything junk. It's overpriced and similar items can be found elsewhere. Aspen can be found in the small pet section in ginormous bags for a relatively low price. Newspaper is free Zoomed ReptiBark(mite infested usually) can be found as Orchid Bark at Home Depot. It is cheaper, not dyed red, and isn't dusty(IE much better for your snake).

The only minor problem with tubs is that they sometimes hold too much humidity, LOL. Darnit! Just make about 6-8 holes on each long side of the tub, and 4-6 holes on each short side of the tub, set everything up as if the snake was living in it and see where the humidity sits. As long as you don't go below 45% and above 70%, you're good. It can go higher as long as condensation isn't building up and the substrate isn't wet.

Hope that helps!