Re: 3 wt for blue gill
TFO pro 7'6" 3wt, my favorite for gills, crappie, alpine brookies, and small stream trout. The best rod I have for close quarters roll casting, this thing has seriously improved my roll cast ability. Cushions 6-7x very well.
It has enough backbone to throw small buggers or light nymph rigs. Biggest fish so far on it was about 14", quite a fight!
PS ^^^^ throssing's deal above is pretty nice if its in your budget...