Np, it took me an embarrassingly long amount of time to grok Vims handling of Buffers, Tabs and Windows. I think your article is a nice introductory writeup on the subject. I wish I had it when I first started with Vim.

Also, as far as buffer handling goes, I really like the SelectBuf ( http://www.vim.org/scripts/script.php?script_id=107 ) plugin for listing and sorting open buffers ( including unlisted! ). CtrlP ( http://kien.github.com/ctrlp.vim/ ) works well for searching them.