I have a 1999 542, bought 2 years ago in Seattle.
I'd call it perfect fishing boat for Sooke and protected waters. Small enough to easily handle solo, big enough for 3 fishermen. I've only slept in the cuddy solo, would be pretty crowded for 2 or 3. Great lake boat too, can water ski and all that.
A problem I have is that I increasingly want to fish offshore out of Renfrew. This boat is just marginally able to handle that, on good days only. We've done it 4 times so far, had to turn back one day half way out...which sucked. So, I love this boat, but do have some 2 footitis.
I have 115 merc 2 stroke on it, plenty of power I'd say. I also have 8hp kicker.
Something I've found a bit marginal...when back trolling for halibut, the motor well is very low in the water, and the waves roll up the stern into the boot for the steering cables. Over the course of a couple of hours, with a non-automatic pump, a LOT of water in the bilge, like scary lots. Mechanic told me the seal between upper and lower units of the boat meets at the motor well and is a weak point...just some caulking between the ocean and your hull (same problem in trophys). He recommended getting rid of the cheap plastic cover there and glassing over it. I am in the process of adding an aluminum plate that will raise the motor well a few inches and give better sealing.
So...I think weight on the stern is an issue I'd consider in how big a motor to add.
But other than that, highly recommend this boat. I was thinking of upgrading, but have decided to keep mine for a few more years.
Though, sad to say, they are even cheaper in US now than when I bought mine...I saw one 2001 for $8000 in Florida. Keep an eye on Seattle craiglist for good deals!
http://www.boattrader.com/find/brow.../ViewType-default/SortBy-year.desc/PerPage-25
PM me if you want any more info.