'Affordable' can mean a lot of things, what did you have in mind?
For interconnects I've been enjoying the eichmann bullets lately. You can pick them up from
www.vhaudio.com for about the least that I have seen. They also have some other nice stuff. As for Bananas I use monster bananas that I picked up from J&R (I was in the other day, looks like they no longer make them or J&R doesn't carry them, the ones I have were maybe $20 for a set of 8 and were pretty nice quality, how they only have the twist lock kind that I don't really dig) and canare star quad [4s11 i think]from
www.markertek.com right now.
I've picked up a couple sets of interconnects from better cables
www.bettercables.com they are SPC with eichmann bullets and are of nice build quality if you're looking for something pre-made, I think they were in the ballpark of $70 for 1m, considering the bullets are $40 its not a bad deal.