Hey,
I am considering switching from mac to ubuntu any help/advice on this matter would be greatly appreciated!
Can anyone tell me if i will still be able to run these programs on ubuntu (tor, bitcoin and utorrent)
Yes, yes, no, but there are dozens of replacement options.
What program would I use as a replacement for word (will people I send this to be able to read the file type?)
Open/Libre Office (essentially the same program, split a while back) They can both save in all kinds of formats, including PDF and Word .doc.
What would I use to run avi files?
Built-in Movie player, or VLC (easy to install)
Will I be able to find versions of these Games (minecraft, modern combat, and gba/snes emulators).
Yes, Maybe, Yes (oh good god yes).
Does WINE work and is there any options to run mac programs?
WINE works for most things, for running Mac stuff, you may need to use VMWare/VitrualBox. A lot of Mac software (well, the cheap/free stuff) is ported to linux, though, because they're based on similar architecture, and it's relatively easy.
Remember, the only stupid question is the one that isn't asked.