Try and find a used pair with no ptex of any midfat. The sharks are stiff, but WOOHOO fast. Perfect for the icy days around here. Don't go too wide and sacrifice to much hard snow performance, as the east only gets soo much pow pow each season.
I was in the exact same boat as you, but a bigger guy (6'1, 260lb in a 38" pant, former ATB racer turned gymfreak turned married. ) 08 tshark 10ft 175 motion ipt14s running great on the groomers and hardpack. Went to jiminy during a 12" dump and I was all over the place, 50% control at best. I was WHIPPED at 1pm trying to keep the waxed side down. Heading past the windmill was great because all of the snow blew off, but once I worked my way into the tree covered, I was a mess. It's even worse when the conditions aren't consistent due to the wind. Snow in the face, ice one minute and then 2' of powder the next. I said to myself "I need midfats!"
Do yourself a favor. Just as SMJ suggested, each ski is different for each person. I know Jiminy/Potters is having a demo day on the 19th of December. Run the sharks until you do a demo day, and you'll get a feel for the best ski for your preference underfoot. Going off all of our suggestions may give you reviews of skis, but it really depends on your level/ability. You may end up spending a little more buying a demo ski, but at least you can play with all of the models for like $40 and end up with your favorite of the bunch.. Even mess with the lengths too. Don't expect to get too many runs in if you are changing the skis out every two runs.. Ask their opinion, and they should be able to narrow it down quite a bit based on what they offer. They have volkl bridge's, line p90's, p100's, ac30's, k2 aftershocks, rictors and so on. OR ....You might want to participate in the ski swap and sell at thier shop starting 9/30 to 10/3. I'm sure you'll see some decent equipment there for cheap money. If you want to get a new setup, throw your tsharks in there for $2, and when they sell, take the 100% PB Giftcard. Details here: http://potterbrothers.com/events.php . The main store (of 5) is in Kingston, NY 12401, literally 300ft off I-87 and about 10 minutes from me in Rhinebeck, NY.
If you want to meet up, I may go over to their even anyway and look for some stuff for S&G's, but I'll introduce you to the guys of the store. I'm a regualr, and I should work there, but I would never leave with a paycheck.