Chris

A moving table doesn't result in less usable space but it does mean the machine requires more workspace as the table will extend beyond the back of the machine when moving so where as a 6040 moving gantry type machine has a set footprint the 4040 & 6060 you will need to allow extra free space at the back of the machine for the table to move into.

I believe that all the stepmores machines have a USB controller but not having one yet I am afraid I can't give any feedback on the quality. I will likely upgrade the controller to a smoothieboard board http://smoothieware.org/smoothieboard as it controls the machine directly rather than rely on a PC running a multitasking OS that is not well suited for real-time machine control.

You will be charged VAT currently 15% for Luxembourg so be quick and make sure it is delivered before January 1st 2015 or you will have to pay 17%. So on a $2500 machine you would be paying approximately €300 VAT.