i dont want to bum you out man but you will be incredibly lucky to find a sled worthy enough to rip thru pow and not give you headache after headache in maintenence issues for a grand. If you're going to spend the money, you might as well save up and really spend some money so you can get something that will do what you want it to do. i'd say try to shoot for the 1500-1800 range at least.
as for a trailer, it depends on the size of your sled... i bought a 10 footer and spent 400 bucks, a good trailer with working lights, good tires, etc was hard to find for me at a good price.
but do what rich said and check the ksl.com classifieds and dont rush into anything.