Thinking of selling my 1000d and getting a 30d, the ergonomics of the 1000d are getting annoying now so need something bigger and want the dual exp dials, im also pretty skint so the 30d seems to fit the bill. How will the ISO performance compare to the 1000d? what i see online the 30d looks better and obviously goes higher by 1 stop, Do y'all think its worth making the change?