This, a hundred times over, after using vim for 4 years full time (e.g. pretty much 8 hours a day, and who knows how long before that intermittently) I finally took setup vundle, it was so worth all of the 600 or so seconds it took to get working.
I agree with your vundle suggestion. I migrated from pathogen to vundle and would recommend that people using the former check out vundle again. Even if it's from the 'wrong author' (aka not from tpope).
The only difference I'm aware of (I haven't looked into it much) is that Vundle downloads plugins too, rather than just install them, but it's a pretty big difference when you're looking for a plugin manager.
It's huge because it lets me manage my plugins in source control much more easily than juggling submodules in git or whatnot. Instead I just have my plugins as lines in my vimrc.
Yeah, all I need is a vimrc when I have vundle. I sync it using Dropbox and run BundleInstall on any of my new computers and I'm good to go with all the plugins.