What system specs needed to run Logic Pro X & Final Cut Pro

Hi! I'm looking to buy a second hand customised Mac mini and the one in question was used as a server in a TV Studio. It's a Quad core [email protected], 8GB DDR3 ram (but don't know if it's 1333 or 1600mhz) and not yet sure of the graphics? I think it will be either intel 3000 or 4000. It has Dual HDD (both 500GB) that run at 7200rpm. And it's Running OSX. I want to run Logic Pro X & mainstage, final Cut pro, Aperture & CS5 Creative Suite. I will be using loads if VST plug ins when using Logic Pro X & I'm Starting to learn DVD Authoring & Production/Video Editing. So will the spec of the Mac Mini be up to it? I had an iMac from 2008 before which was 2.6GHz intel core 2 Duo, with 4GB Ram & 7200rpm 500Gb HDD. But it was really struggling with all the plugins I used (running Logic Pro 7). Any help would be greatly appreciated. ASAP please as I have to make my mind up by late this afternoon (England GMT).
Many thanks
Mad4Music