im running serfas lights front and back plenty bright and didnt cost arm and a leg. for a seat i have a serfas e-gel which i love. i think everyone has their own favorite seat....its not a one size fits all thing.for a pump on board i carry a topeak mountain morph pump it is the best i have seen or used. for the whole phone music thing i scored a killer handlebar speaker bag on amazon for like 30 bucks.speakers run on 2 AA batteries and it is pretty loud and clear plus big enough to hold phone,ipod and keys.