relocate to texas?

i’ve been asked to relocate from my job in wayne, nj to dallas, tx. the company wants to know what it would take for me to relocate. i’m only making 51 now and i’m doing everything from tech support/help desk to network admin. to programming. i just graduated from a computer programming 18 mo. course and that is where i would like to progress with the company. any ideas what salary i should be looking for for programming in the dallas area? also, any ideas what to ask for as part of relocating myself and my family?