Think I'm at about the same point as you Scutch....Just got to "s**t town" the real muddy swamp type place.
All upgrades purchased for the villa,
have about 20 feathers,
20 codex pages (anyone else lined them up properley yet to show the full picture?
),
4 of the tombs done,
all treasures collected,
all available sub quests done, races, beat up, mail delivery, assassinations (the ones from the pidgeon coups)
found all glyphs that are available in the areas I've been to (about 16 or 17 i think)
purchased all available paintings, weapons, armour, pouches etc and still got about 120000 florins to spend lol
done all the training fights (including the ones you have to pay for)
Haven't been to venice yet, think thats my next main story mission, I'm a side quest ***** lol, oh and I've dyed my clothes, Wetlands Ebony
Always find it best with games like these to get everything done as you go otherwise once the main story is finished I kinda loose the urge to play them as I've effectively "done it".
think thats about it so far lol agree about MW2 in comparison, I've still not finished the single player campaign and since getting AC2 I've not touched any other game at all.