You've probably heard this tip a few times, but it's another great post for those who might be looking into an inexpensive travel bag for lightstands, tripods, jibs / cranes, or anything else that has some length to it [Thanks svem]. I'm currently using Heavy Duty Speaker Stand Bags (found here) for my equipment, but they don't come with rollers.

If you're looking for an inexpensive long bag with rollers to make things easier on your back, check out the Golf Travel Roller bags that are about 50" in length and have enough room for several tripods, monopods, lightstands, or a folding jib, and an extra pair of shoes (for golf).

Golf Travel Bag Roller