Always opt for proven components, especially for commuting where reliability is a must (Commuter bikes shouldn't be considered second rate or low end) - To start with get a King headset and Phil hubs and you won't have to service them (And next time you need a bottom bracket do a Phil Wood unit there too). And use Panaracer/Soma tires. The up-front cost is offset by years of trouble free use.

Or if you just like working on your commuter get components (Headset, bottom bracket, hubs, pedals, etc) with loose balls and do a complete overhaul every so often (You'll be able to feel it when service is needed) - a small tub of quality grease, a few inexpensive component specific hand-tools, a selection of easily obtainable ball bearings, and a few hours labor a year will keep you on the road.

Most importantly, keeping your bike clean will extend the service intervals.