If you don't need it threaded to a point, you can just get a good hacksaw with a carbide blade or diamond tip blade suitable for cutting steel. It's probably not hardened steel and will not be too hard to cut. If you need threaded, I'd call a couple machine shops.
If you cut with hacksaw, just get some plastic caps to cover the ends with to avoid hurting your floors. The kind you put over chair legs should work fine. Also, if you buy the rods from a store, they may have the ability to cut them for you. If all else fails, just ask any of the numerous bike thieves in NYC. They can cut through metal in a matter of seconds (granted, neatness is not usually a consideration).
J