I'm pretty happy with my Carolina brand motorcycle boots (you might find a similar style sold as an "engineer" boot). They're top-calf high, heavy leather (with steel toes and oil-proof soles), and no laces to catch junk. The last pair I bought cost about $120, but they last me many years (and can be resoled and reheeled), especially since my bike died. Not the best hiking boots, but they're unbeatable for the price when it comes to snakebite protection.
Hint: buy them as tight as you can get on and off in the store -- they'll loosen up quite a bit as they break in. Then give them a good waterproofing oil treatment, that will greatly accelerate the break-in process. Do NOT use the old trick of wetting the leather and wearing the boots until they dry -- that will damage the leather and cause the shanks and steel toe caps to rust.
I used to get mine at Bent Bike in Lynnwood, Washington, but it's a nationally distributed brand; most motorcycle accessory vendors that aren't tied to the Harley-Davidson brand will either have them, or know who does locally -- or have another brand that's just as good.