irekei dagger bards are far from uncommon, plus there are PLENTY of dagger users already, and more and more bards are popping up everday...
and depending part of your build on a godly rune (and a godly dex at that), is never a good idea, IMHO
you may or may have not noticed i have a certain affinity for scouts :E though making a non-cookie cutter scout takes a bit more effort... still, i think the scout is the best stealther...
if you really wanna step away, choose a weapon that few others use, and make something like a spear bard (LA + str/dex combo, or spear ranger (cap BC low)... or some sort of rogue barbarian, less hitpoints but you will get to stealth...
bladeweavers and blademasters can be cool, if you take a BW juice up your con (WP + Hearty will get you 85 con at creation, than you can a apply a 5, upgrade to 10, and then upgrade to 15, getting you 100 con... or more if you choose, like i did on my bw scout, and still have fairly good dex/int)...
not manly elves jack their con like that, so they end up being total pushovers (look at lokri...), but you can usually manage a decent hp/stam level if you try...
i like blademasters, but the class selection for them bothers me, any of the available rogue professions are substantially disadvantaged against fighter based BMs (as with most profs that can be both fighter and rogue based)...