This was my biggest upgrade of all, but I finally got my Archie Comics fan site to Simple Portal
http://www.archiefans.comOriginal setup:
SMF 1.1.10
DilberMC
Sphinx portal system (theme custom modified to work with this system)
Various mods (SMF+G2, SEO4SMF, bookmarks, related topics, member map, user CP, arcade, shop)
New setup
SMF 2.0 RC2
Cool theme (got it from a friend and it's not public so I can't disclose the info...)
Various mods (SMF+G2, Sitemaps, arcade, shop, SMF Link System)
I did tweak the theme slightly - instead of having 15px top/bottom padding and 5% left/right padding, I changed it to have 3px padding on all sides, so the background image still shows a little but things don't look too squished
Took me three hours to do it, most of which was due to manually making the changes for SMF+G2 (haven't gotten around to finishing the update yet - hopefully will have that done soon), but it was well worth it
Still have a few more things I want to do with it, most of which are backend changes, but it's complete for the most part.