Glad you enjoyed the steelhead season Frenchy, unlike some of us... (actually, not us, just me)
There are many more fantastic fisheries that you must try out during your stay.
Most people are (if not already) going to head to lakes in the interior BC in the next several weeks. The trout fishing in May and June are fantastic. These rainbow trout, unlike the smaller stocked trout in the Lower Mainland, are strong stillwater gamefish. Chrome Mykiss can tell you more about that as he has plenty of experience on it.
If you have access to a row boat, pontoon boat or float tube, I would highly recommend you to give it a try. The fish size ranges anywhere from 2lb to 8lb.
Take a look at Chrome Mykiss' photo album on the stillwater trout fishing:
http://www.fishingwithrod.com/member/gallery/StillwatersYou may also want to give saltwater fishing a try on the island in July and August. Connect with Iron Noggin, a member of this forum and FishBC, in Port Alberni if he is not completely booked up already.
The sturgeon fishing has started like Rick said, but I would suggest to give sturgeon fishing a go in September and October as those are the prime months.
Capilano River coho salmon should start anytime now and will be good until early July.
Thompson River rainbow trout starting in early August until the end of the year.
Chinook salmon fishing starts in July on the Chilliwack River.
Then there is the salmon fisheries in the mighty Fraser, but others can tell you about that!