[Fasterthanyou]

If you're looking for a motor on the cheap and looking to make less than 400hp with no power adders then talk to Tim. He's probably got a long-block you could pick up on the cheap and get rebuilt. Slap on some vortec heads and a mild bump stick (a Summit special for $80 comes with lifters) and some pushrods is all you need. www.goautocenter.com has specials where they sell new take off parts from crate engines. I think there are pushrods sometimes for sale for like $16 a set. They also have other stuff on the cheap.
What are you looking for and how much work do you want to do? Do you want a turn-key swap or can you save some money by doing some wrenching and installing parts yourself?
If it were me, and you're looking to spend the least amount of down-time I'd get a GM crate motor, either the zz4 short-block, goodwrench 350, or the 350ho vortec and go from there. This way you've got a brand new block that you KNOW is good. When you eventually upgrade you'll have a seasoned block ready for some big power. That's the only reason I went with my crate motor. If I had to do it all over again I'd do it the same way only i'd have installed a roller cam before the motor went back in.