Got two great shops for Eastcoasters:
1. Valley Bike and Ski Werks in Hadley, MA (on Rte 9-Russell St)-owned and operated by 4 very excellent bikers and skiers-great prices and selections, excellent service and a top-notch boot fitter on hand. They have a good website, I'd trust these guys in gear advice, fair pricing, tuning, and boot fitting. So so a lot of other skiers/ riders in the region.
2. Bicycles and Skis Unlimited in Greenfield, MA (High St). Right off of rte/ 91n (and easy stop-2 minutes- on your way to vermont). Slightly lower profile ski shop, but they have excellent pricing, good selection and they have the best, most knowledgeable, grizzled-old ski tuner/ boot fitter/ ski gear advice giver in Massachusetts-Phil Sheridan. Top national junior racers and hard-core adult rippers trust their gear to Phil, and his dead-on, often economical advice on boots, skis and fitting is wonderful. Bob Perry who owns the shop is great, always willing to work a deal (bikes and skis) and really serves the regional population well.
Anyone in southern New england would do well at either of these shops. If either one ever closes it'll leave a gaping hole in the product end of the ski culture of western, ma.