I've heard of some quirks on the PC side of things, while the Mac OSX is mostly plug and play. (We've had a few gremlins but it's mostly worked well) There is a Malletstation Users Group on Facebook (https://www.facebook.com/groups/malletSTATIONEM1/) that you can probably get some more PC information.
We purchased a synth cart from Melhart that we have Mallet station on. I used a circle cutting bit to cut a hole to run the cables down so I could put the computer below it. I know there are some nice PageantryInnovation carts that would work well. (We were on a tighter budget)
Best wishes, it's a fun toy and has a lot of things you can do with it!