Doc Ranger

So I was never a big scrapper guy back in the day. Had a BS/Reg way back and I may have delved into a Spines before quitting. I'm a big support toon player...controllers, defenders and tanks typically. I currently have a Staff/SR at 35 which is a ton of fun and I am hearing good things about the Bio set which I have never played. I've seen a few posts here regarding spines and rad pairing well with Bio. If I am going to maximize my ability to help a team (I'm not a big solo guy...I love helping teams) what do you think my best avenue would be? I primarily buy SO's...the IO set thing is a little over my head right now.

I am a returning player who wants to try something different. I've done the Ice/Storm, Fir/Kin, Fire/Rad and played various Kin and Rad defenders back in the day. I have heard good things about Ill/Dark and Ill/Cold on various threads here. I've never played either combo so which do you think would play in groups better using mostly SO's? I'm not one to sit by the crafting table for hours trying to find the best IO sets just yet. I go to the store and buy the basic SO's and save the rest of my cash for the possibility of set exploration later on in life when I have time to delve into that complex universe.