Bontrager hardcase tires are good ones...very good ones, but some of them have high rolling resistance. The Race Lite series rolls very well. They are spendy though at $44 apiece. I run some variety of puncture protection in all my bikes. Find a 700x28 road oriented puncture resistant tire for a good price and spoon them on. You WILL see an appreciable difference. Your LBS may have a suitable option for or offer a discount on Race Lites. If not, many online retailers offer free shipping and have great prices.
Not free shipping, but a great price on a top quality tire from a good vendor.
http://www.outsideoutfitters.com/ps-...00c-tires.aspx