Well, congrats on coming to Florida! It is a great place to live!!! Some areas to look at, that I would suggest, are Lutz, Odessa, Land o' Lakes, Keystone. The are all basically Northern Tampa and areas that are NOT congested. Areas to stay away from would be New Tampa, Tampa Palms, South Tampa. If you are looking for areas where the houses don't sit on top of each other, your best bet is North. I was born here in Tampa and lived all over - I now live in Lutz and it is the best place I have ever lived here! We have the lowest crime rate and there are tons of families!!!
As for schools....this is a tough one! I would say that it depends on where you live that will determine how good or bad the school is. There are some good public schools and there are some really BAD public schools! Personally, I don't like the public school system as a result of the FCAT exams. Not sure if you guys have that up there, but here it is a BIG thing. The public school system teaches this specific test and what happens is that the kids learn nothing else but what is on this test. If one year the school does poorly on the math or a section of the math part then they will focus on that with the students the next year. Anyway - to make a long story short, I HATE IT! So, my children go to a small Catholic private school. I chose this school not only because it was Catholic, which that is my religeon, but because it was one of the most affordable private schools with a good reputation. I think you will hear a lot of different views on the school systems here, mine is just one opinion.
Good luck on your move!