Replying to Help- what size skis are right???

Yeah total noob question but might as well ask it. Im about 5' 5'' 125 lbs now but ill prolly be about 5' 7'' by next season. rite now i ride 155 cm nothin but trouble, and ride park about 1/2 the time or more. im lookin to get either park skis or ones that can handle park groomers and maybe some pow too (but pow's a long shot on the east coast). So bottom line, wats a good range to shoot for lookin for new skis? thx.