I am actually one of the web developers at Floors To Your Home and happened to be checking our analytics and saw a bit of traffic from garage journal, which I frequent on my own time as well.
If you are still in the market for some basement flooring just shoot me a message and I will be happy...
I agree with the masonry call. My shop is made of cement block and I use them to hang receptacle boxes on the wall. Pre drill a hole with a masonry bit and then tap them into the hole, then just use drywall screws.
What type of material are you using? Angle, pipe? For most of my projects I use square or rectangle tube with a .125 wall thickness and haven't had any weakness issues.
What type of welder did you get?
ETA: I recently built this welding table and it is made entire of .125 thick material...
I am in Indy and seriously jonesing for a bridgeport or clone. At this price this is almost right where I need it to be to justify the purchase since I have never operated a mill before and this would be more of a toy than a tool that gets used constantly...
I emailed and asked about the vise...