I'll toss in my vote for Blundstone boots as well. Worth the price, they look nice and most importantly are comfortable. Easy to put on/take off as well.
As an alternative, Baxter boots[0] are also worth considering. I bought a pair of Gringos[1], as they were cheaper than Blundstones, and have been pretty happy with them.
If you really want the full dress boot option and are prepared to spend a lot, there's always RM Williams[2] of course. However, I've heard reports their quality has suffered in recent years. I have three pairs of Yearling Craftsman boots now between 15-25 years old. They've all been re-soled multiple times and the older ones are looking a bit worse for wear, but I've certainly had my money's worth out of them.
