hey - the fact that you're asking means you're not an idiot. ;)
As for the boots you may want - if it's support you're looking for the Professional's Choice SMBs are the best (imo). The odds of your horse really needing the support for what you're doing, not to mention the debate that rages on if the support is a help or a hinderance in the long run, are going to be something you'll need to decide for yourself.
If it's more a matter of protection from interference, hitting rails, etc. then a decent pair of splint boots or open front jumping boots (maybe ankle boots for the hinds as well if that's also an issue OR if you just like the matching look) should do the trick.
The materials used in the boots you choose should also be a consideration. If you get leather be aware that you'll have to clean and condition them like you would with your saddle and bridle, etc. otherwise some of the neoprene ones are as simple as hosing off when you're done and letting them dry. All depends on what YOU like and what you're willing to care for.
I hope that helps some. :)