Best floor material in basement?
I'm moving homes and have an unfinished basement that I'm turning into my new shop. The square footage is great (>1000 sq. ft), but the floor stinks. Right now it is a concrete slab that is sloped towards the middle (like a funnel shape) where there is a drain leading to the sewer. I likely need to maintain that drain, but really hate working on concrete. The basement is dry, but it is possible that water could get in, so a drain is a must have.
In my old shop (also a basement) I use rubber interlocking tiles (the cheap kind from harbor freight). I don't much like those because dust always gets in the cracks and you can't really roll heavy machines over it.
So what's a good alternative? Assuming I need to leave the drain, but can do pretty much anything else (epoxy, wood, etc...), what would you do?