Wow. I never expected to have over 20 replies in under an hour!!! Thanks to all that replied.
I'm fairly novice in all that is music recording on PCs, and the previous PC I had was barely used as I got lost in ProTools.
I'll try to answer your replies in order:
No size limitations (if you're speaking physical size of tower). Could be full-atx or whatever, and like I said I could even manage a rackmount case because it will eventually go in its own room all set up for the studio.
1) both, since I have guitars with DIs, mics, but also a Roland V-Drum that I plug in through MIDI and Addictive Drums
2) I don't know
3) The main problem with the previous build was that it wasn't specific for music recording and production, it was a basic custom PC made from salvaged parts. Also as I said, ProTools has a huge learning curve that I never went through.
4) Good! If the price is lower then that, that's great.
Thanks for the suggestion, I'll look into that closely. However, PCPartPicker warns that there would be a BIOS upgrade necessary and that another CPU should be used for that BIOS upgrade (or something ...)
I already have a PCI FireWire card, do I need a PCIe ???
I'll have a thorough examination of this website : https://help.ubuntu.com/community/UbuntuStudioPreparation#Hardware
How so?
This is getting to be a big post, I'll cut here and reply to the rest in other posts.