I grew up on, and now own, a Gulfstream 232 with a single 225 on it and ski quite a bit in the summer. We pull ski's, even a grown man on a slolom (single ski...however you spell it), tubes, kneeboards, and wakeboards. It does great with a few people on the boat and towing 1 or 2 people, no problem whatsoever. I'd imagine twin 150's wouldn't have any issue.
I chose this boat for the reason of just what you're asking. Like I said I grew up with a neighbor who owned one. We went fishing and skiing on the regular and now do the same on my boat. It's great in the bay and has the cabin so the wife/kids and get out of the sun and have a head. My buddies and I take it out on the rougher days in the bay for stripers and it does fine. For me, it's a good all round boat with a lot of versatility.