We do have a beekeeping section on our sister site,
Backyard Herds.
I have had bees for 5 years now, I think. 
Yes, bees will forage 2-3 miles to find pollen and nectar. Pollen is used to raise bees and nectar is used for honey. Beekeeping is VERY local. What works for me in CA will not work for you in VA. Bloom times are different, plant source is different, climate is different, etc. If you can find a beekeeper near you to mentor you, that would help you a lot.
I have Langsroth hives. I like them for ease of inspections, and they stack easily. I have never had any other type of hive, so I can't compare it to the others. My understanding of top bar hives is you have to stay on top of them, as they run out of room quicker.
Definitely treat for mites. I underestimated the power of the mite, and I lost my first hive their first winter. It is a much larger problem than you think.
If you can afford it, get 2 hives. You will be able to compare them and notice differences between them. You can build the boxes over winter and get the frames, equipment, etc. but you will get the bees in late spring.
Plan on screwing up....a lot. I'm still making mistakes. I've talked with beekeepers that have been working bees for 30+ years and they still say they are learning from the bees. When you think you know something, the bees show you that you don't.
My 2nd hive this year is busting at the seams, a very healthy population going into winter. #1 hive has a good population, but lost their queen last winter and it took me a while to get them queenright, so their population is not as packed as #2.