Thank you all for your excellent input on this. I guess this confirms what I suspected and, being a catch and release fisher, most of the time I do want to maximise the survival chances of anything that I put back.
Unfortunately my budget is limited and fly fishing equipment aint cheap so,for now, I might have to make do with what I have or stick with the smaller fish.
I have seen relatively cheap gear int he 8wt range at Canadian Tire but I am leery about that stuff - not sure it casts well and in the long run that may not serve me well. I have already found, from hard experience, that the cheaper options can be too much of a compromise. If I can keep everything within 200 bucks I might just be able to pull it off with less flack from my wife

Not sure if that is realistic though.
Much as I like fly fishing I am not inflexible about other methods. I would just as happily go after them with a bait casting setup.
After watching that video and seeing that photograph I feel pretty fired up to give this a go (Kellya, if you got that on a 6 weight you must have had a long battle on your hands). Any additional thoughts on where I can get half decent equipment at an affordable price would be much appreciated.