Cheapest price I have seen for these excellent tyres for a commuter bike and there is Free Delivery!
I have seen them for £22.95 at Parkers International but with P&P it takes them to £26.90.
Available in the following sizes:
700 * 23
700 * 25
700 * 28
In my opinion these are some of the best tyres for a compromise between being lightweight and puncture resistant. Having used Marathon Plus for 18 months before these I have had no complaints.