I'm looking for a lugged steel mountain bike. I am on a budget for frame only of around $500. I am more than willing to buy used but I don't really know what companies made lugged steel except a few treks, bridgestone, and a khs. Anything else worth looking at? Better place other than craigslist/ebay? Last q: any company make a lugged fork that is disc compatible? I think the last one is a long shot but it's worth a try.