Did you check the useful scripting like Google preview which come with standard package? Seems most Greasemonkey scripts can be converted. Open up some possibilities. Better tab handling, alias for address/search bar, Adblocking, Super Drag and Drop, Right click "Search with" mouse gestures besides tweaks from http://www.enhanceie.com/ie/
is not so bad in 1 installation - if you absolutely want "original" IE7.