I'd get the RCBS Partner Single Stage.
http://www.midwayusa.com/eproductpag...eitemid=403729
It's $56 at Midway.
BTW, if you REALLY want to do this on the cheap, Lee makes a Single Stage press for less than $20... again at Midway. Like all Lee stuff, I'm sure it's serviceable, though I've never used this particular press:
http://www.midwayusa.com/eproductpag...eitemid=807734