Originally Posted by Bike_13
Also, be careful with the front derailer - only shimano road derailers are designed to work properly with STI.
That's correct. MTB front derailleurs won't index properly with STI shifters.
So, when you get a front derailer, check with Shimano that it is STI compatible, and designed for smaller chainrings (as road cranksets traditionally have larger rings).
Shimano 8-speed road triple front derailleurs are pretty tolerant of smaller chainrings than the 52T they were specifically designed for. My son had a Trek that came with a 7-speed RSX group that had 46/36/26T chainrings but an RX-100 FD intended for a 52/42/30T road crank. It shifted fine.