My favorite: ibis titanium, but these are hard to find.
I cant remeber if its gil or simon connel who has the info. but the original UK ibis importer still had a few ibis ti bars NOS last time I asked. yeh I like them but they're fairly narrow at 22in wide. titus have made custom ti bars (not sure if they still do), $85, as do seven cycles, uncertain on price, but they're both solid performing bars.
I can vouch for this story, the guy in question (Mike) used to run the Ibis importer here in the UK, I bought a ti bar off him last year when he was ebaying off the last remaining NOS frames....checked to see if I still have his email address but I can't find it......really nice, helpful guy though
Said he had lots of old T's, alu stems and key rings too, his ebay id is escortfanatic if that's any good to you all.