If you install Ubuntu and it doesn't seem very smooth, or it bugs out after waking up from sleeping check your graphics card drivers. I know a lot of people who think it's awful due to lack of drivers.
I'm curious to know, what kind of word/ excel/ etc. Programs are there? Are there any types of photo and video editing stuff? And stuff like GarageBand? Happy Birthday KNOSSEIR!!!
They have a suite similar to OpenOffice, called LibreOffice. As far as I know, it has full support for MS Office file extensions such as .doc, .rtf, etc. For the photo and video editing, your better off on a Windows or Mac environment, however, you can download the Windows versions of these, and then run the application from within Linux using a third-party software like WINE, which will allow you to run .exe's. However, using WINE with performance-intensive apps like Photoshop and After Effects, you might notice a performance drop, if the app will even open.
You should dual-boot Windows 7 and Ubuntu. It's what I do right now... plus if you use VirtualBox for Mac OS X (or triple-boot), you have a perfect tri-fecta!
Paul Murphy says it: best The Linux platform includes the Linux kernel, the same GNU utilities found in virtually all versions of Unix, the same GUIs and applications available for most Unix variants, and hundreds of device drivers either custom-developed for Linux and (mostly since) ported to Unix variants like Solaris for x86 or ported from Unix variants such as OpenBSD and SCO Open Server.