I've had pretty good success with oil eater. Orielly actually had it on the shelf back when they were still Kragen.
http://www.oileater.com/concrete-floor-cleaner.html
Nice deal & a fair price. I'm a firm believer that most used items, if still in good shape are only worth half of what they cost new. I too need a bench vise & would've jumped on that deal too!
Very nice, I'm a sucker for all things tool related. Worked in the tool industry when I graduated high school and was there for 13 years before i changed careers. never got it out of my system I guess.... nice scores