I have a Daiwa Lune 253 (round reel). It's pretty sweet. Solid, smooth drag etc. However, if I was to do it again... I target everything but springs, until I get a spring on the Vedder, then I'll be targeting them too... I'd get a low profile reel. They weigh like 5.5-7 oz vs 11 oz for a round reel. A light weight setup (oz etc..) is what I'm looking for.
As for line capacity, I honestly have never had a fish run anywhere near 100 yards on me on the Vedder.. YMMV .. that's a football field. Side control and 15lb Seaguar blue seems to help.
I have a 10.5 ft St Croix Avid, and that was a good pick. It's med-light but the St. Croix rods seem to have lots of backbone. Maybe it's because it's a fast action tip (bend in tip/top part of rod).
For spinning rods, I really like the Clarus. If you like the action maybe get a casting Clarus. The price certainly is right. Though personally, for float fishing I'd spend more money and time looking for the perfect rod than a reel. All else being equal, I'm happy I chose the medium "lite" vs anything heavier. Just pick a company that makes a more solid version of "lite".
I've had lots of luck at Sea Run in Coquitlam, and they're good guys. Never been, but seems like the guy at First Light in Burnaby knows what he's doing too. Seems these two shops have what river gear fishers need. They'll steer you right.
Note: I"ve never hooked into anything 20+ lbs.