Those 930 framesets were double butted steel, but I don't remember what kind. I wanna say maybe 853 in the main tubes, but I don't know off hand and could therefore be very wrong. They're great bikes, though. Did you check the inside of the tubes to make sure that all's well? If I were you, I'd spray them all with Framesaver to try to keep the frame alive longer. The 930 was set up similarly to how you have it; it was a budget steel bike when I sold them. But, it had front suspension and a nice frame, so it was an easy sell. If you wanna save weight, you can just start upgrading stuff a bit at a time or save your pennies for a new steelie in the next few years.

hanshananigan, you'd be amazed what the proper dedication to keeping it cheap can get you. There are shops in this world that give away used small parts and sell other used stuff cheap.