In Dallas proper, you won't find a decent public school. Outlying communities with decent schools and housing are plentiful, though. In what part of the Dallas area will your employment be located?
What do you consider a reasonable price for a 5 bedroom house? That will be helpful in guiding you to appropriate areas.
No state income tax, sales tax runs about 8.25%, property taxes are around 4% (depending on where you live).
Tons of places to hunt and fish, but most of the state is private land. Leases are the most common way to procure a place, but there is some public land to play on.