I've used Windows whole life but would like to get into Macs...I'm sure there are some programs better that are Mac based but I'm just so use to Vegas.
It's possible to run Bootcamp on the Mac though in order to run my PC program right? Would it be really choppy or not behave the same? Also, would it be easy to install? (I have the program on a disc)...
You can run Sony Vegas via Bootcamp or under OS X using VMWare or Parallels. I don't know if there's a significant performance hit, but I've seen people running Vegas that way on Mac OS X. You can Google VMWare + Sony Vegas, etc, and maybe find someone with first hand experience willing to give more details.
Most major app categories are available on Windows. Many specialized utilities have an approximate Mac OS X equivalent. E.g, the best file/folder comparison utility is Beyond Compare, which is currently in open beta on Mac OS X. Sometimes there are "best of breed" utilities like TreeSize Pro which just aren't available on Mac OS X, but there are always alternatives.
Within corporations, highly job-specific "vertical" apps tend to be Windows only.
OTOH -- as app deployment has shifted from native executables to Web-based, this somewhat diminishes the importance of an OS-specific app. Increasingly companies are using web apps for internal use, not a native app which must be installed.
Unfortunately Vegas is not currently available natively for Mac OS X, although there have been rumors they might do a port.
FCP X is an excellent program, and relatively inexpensive with liberal licensing policies. However it is different from a normal timeline-oriented editor like Premiere Pro, Avid or Vegas. I came from Premiere Pro and it took a while before I was comfortable on FCP. X does a lot more for you regarding metadata, keyword tagging, clip ranking, etc.
Many long-time pre-Windows 8 users find OS X more "windows like" and familiar than Windows 8. With OS X the paradigm of overlapping windows is uniformly supported and updated with new version, including fresh UI elements. It hasn't been "kicked to the curb" in favor of a radically different UI.