Greenie, the iPhone 5s is a solid upgrade. Much faster, better screen, better camera and the fingerprint sensor works really well. We had the original iPhone 16 gig phones. Apple gave us $118 for each and then we bought 32gig 5s phones for $200 each.
I had to get a new windshield mount since my old one wouldn't fit the new phone and also wanted a wallet case.
Composite Twist Lock Suction Cup Mount with Universal X-Grip Cell Phone Holder
Sena Wallet Slim Leather Case
Christy got a silicon case at Marshalls for $10 and we found 3' black Vivitar brand cables for $15 that actually work.