If you are thinking about next winter already (I know, we have barely started Spring) and are interested in track racing, you need to get accredited. There's a group on next week's Rocko track session , on evening of 8-April at Derby that will get you from zero to level 2 accreditation, (level 4 is needed for racing). As it is an evening event and accreditation is not physically strenuous, it shouldn't get in the way of your road plans.
See the Track Blog for details.
Here's the current stuff about the club you could be interested in.