From time to time on the fields of radio-amateurs you heard about discussions about banana connectors vs powerpole connectors and both parties tend to prove their views to be better than other. I have myself been using banana connectors as the overprize of powerpole has been too much for me. Also as mostly being a QRP or 100W user bananas (also the eatable) were more than OK. Until now! Happily Im still among friends, and few of those are rc-hobbyists. Slowly they are brainwashing me to the RC-world and while stumbling as a rookie, there is alot of good stuff you can and should use on the HAM side too :–). XT60 connector is the one which im propably at first going to use on my field installations. Here is a short description of the connector and url to sparkfun as the image and description is from their website.
and here is where I bought mine!
Be extra caution where do you buy the connectors, some sites do sell cheap copies which are not filling the requirements. I have myself using lately http://www.hobbyking.com and price per one pair was about 0.64eur (including postal fees).