Well, if money is no object (and there is an administrator available...that would be you, wouldn't it...) then ClearCase is probably the best.

My estimated budget is roughly $0.00. So I'm going to have to go open source and recycled hardware where ever possible.

And in my case I do have to have Mac support. Both of the artists used Mac's for artwork and some HTML coding. And avoiding conflicts where I'm working on the code and they are changing the artwork at the same time is one of the big goals here.

Jay