You're going to ge an awful lot of opinions on this but I'll chip in anyway. I bought a pair of Oakley SI boots, in tan (they have black too), and they are great. Lightweight, airy, durable, and extremely comforatble (once broken in). Now, they are WAY too expensive retail. I got lucky and got in on a group buy with some cop buddies of mine. They retail for $225 which is absurd for ANY boot, not to mention Oakley. I paid $90 through government sales and they are worth every bit of that so I'd say if you can work a similar deal, go for it. You can also get wide sizes through government sales. Now, you will note I said something about break-in--well, it takes about three weeks to break them in. Longer than any leather I have ever owned. During this time, your feet will hurt but rest assured, it will pass.
Greg