i don't really see this as being over powered. rogue and ranger mc grant the use of their striker specific abilities (sneak attack and quarry) once per encounter. that's a plus 1d8 or plus 1d6 every encounter as opposed to the ability to spend two or three of my healing surges in a single encounter once daily. i guess it depends on the number of encounters your dm throws at you in a single day. thanks for all the help, and thank goodness for house rules.
ps. i am a dnd insider subscriber and it was the biggest waist of money. i bought it for the character builder before they deemed necessary to tell us that it would not be compatible with macs. dnd insider really is nothing more than an elaborate ad for their over priced and shotty quallity minis and numerouse extra books.(yeah i know i play an avenger, what can i say, i'm a sucker).