Despite living in Brighton for past ten years I still support Slough Town, who now play in the Ryman Premier.
Despite being thrown out of Conference, a few seasons back and recently losing our ground we are still a pretty good supported club (we were taking 100+ to most away games last season, which if you think some of our opponents average about 50 at home that's quite a lot).
If i can't be bothered/can't afford to go to Slough i'll watch Lewes who are in the Conference South. And on Saturday i'm going to be watching Arundel in the extra preliminairy round of the FA Cup.
I love this level of footie, no cops (usually), cheap, drink throughout the game, change ends at half time, friendly (usually) and always a good laugh meeting up with the slough fans - some who travel from cambridge and matlock to get to games. And guess what, unlike that other premiership, its not bloody obvious whose gonna win our league this season.