That's a nice bike and great for the purpose. I use porteur/moustache style bars for my get-around-town bike they've got a nice sweep back to them so you can use the drop levers on the curved part. That being said I use flat bar levers on it anyway since then I can sit fairly upright and keep my hands far back on the bars (near the bar-end shifters) while I ride. You should be able to use presta valves with wheels drilled for schrader no problem.