Calendar & contact management

How do you effectively manage your contacts and calendar? Been using my phone (samsung u740) w/ limited success including can't keep contact info like street address, calendar is hard to see, and not able to sync easily with a desktop app (except bitpim). Do I just spend the cash/reup my wireless contract and go with a new smart phone, maybe synced to outlook, just use an ultra portable pc, paper???? what do you use and how's it going?