Inside Heat is about as active a league as you'll find, as far as trades and forum activity goes.
www.insideheat.com. Cubs, Cardinals, White Sox and Brewers are available. It is an OOTP5 league, but we do require our owners to use the game to export. If you have further interest, you're more than welcome to email me at
mandersen@gotucson.com or IM me at AndersenMat.