Welcome Winston! I no longer compete but I used to do some sport mt. bike racing, triathlons and cat 4 cycling. After discovering the CF Journal and site about four months ago, I am now in my best overall condition ever. The demands of family/work now limit the time I can commit to training but CrossFit has provided more results in less daily training time than any other routine I've tried... while actually improving my endurance capability.
There are quite a few CF/endurance athletes that post on the boards, so you'll find plenty of company.
For the record, I miss competitive cycling but I now spend most of my recreational time doing the things my kids want to do versus making them always do what I want to do... or leaving them out all together... but time might need to be made try a cyclocross event.