The Roof huh! Up there peeking at the hot chicks tanning on the Hudson?
Nah, actually had to do work -- sucks :sqerr:
Granted, while I was up there fixing the hatch, I did install a new camera that gives me a better river view. Just a cheapie, but I got the cable run done, and once I put the new PTZ up there, I should be able to give you folks some interesting shots of the lovely ladies on the boats...
Anyway, back to touch screens...
You don't really need any extra memory to handle a touchscreen -- Win7 does a pretty nice job, but...
You need to develop a feel for these things. Scrolling is not easy, but pushing a button is. Using sliders or knobs is not easy either.
The biggest problem I've found, is that the skin controls have to be huge, otherwise you risk hitting the wrong thing with your finger, and mucking up your show! That means you lose a lot of screen real estate, just to make them workable.
I prefer keyboard shortcuts and a mouse, but a controller is also a decent option, although you still need a keyboard and mouse for certain things.
BTW, Rockit will run audio just fine, on any machine that runs Windows. I would get a machine with a discreet video card though, as that is the major slowdown of the whole system on cheapie machines. You can have the fastest processor in the world, and gobs of RAM -- but if the video subsystem is slow -- it all suffers.
Sound cards -- check out this sample setups page:
http://softjock.com/rockitprodj-soundcardsetups.htm
BTW, I no longer recommend the Audio2DJ -- too many problems, that weren't fixed on the last set of drivers I tried. Works great when it works, but when it decides to start making noise, only a machine reboot will fix it.
The Behringers have been the most reliable sound cards I've ever used.