Welcome. I've lived in Dallas since 2011. I'm fond of the Lake Highlands/Casa Linda/Lakewood area since I enjoy biking & those area's are so close to the lake.
I have lived Downtown for the last few years & I enjoy it as well. It has it's drawbacks of course, but I'm across the street from my office & I'm walking distance from many places to go "out" at. Not recommended if you have kids tho - which it looks like you don't.
EDIT***In reading the entire chain - I just saw you moved here, welcome!***
Thanks man! Let me know if you go to any meets.