I'd like to weigh in on this, as a former IT help-desk employee. I have worked for huge corporations like Tolt Service Group replacing all electronics and troubleshooting electronic equipment in huge department stores (Albertsons, Fred Meyers/Kroger, Costcos, Safeways, and such), Planar Display Systems troubleshooting monitors, TVs, projectors, 3D displays, and touchscreens for like hospitals, engineering firms, and government facilities, Burroughs doing troubleshooting of ATMs, safes, and KABA MOS locks, Microsoft Windows Vista launch for Microsoft (what a fucking headache and POS operating system), HP OEM support for their desktop line, and Comcast for their tier 2 networking (also headache dealing with end users and simple minded business people).
Let me start off by saying it is a very stressful industry and your return in salary is purely based on who you know, not what you know, and certificates/degrees. The industry is saturated with everyone and their mom trying to get into the field so it will be tough to find a decent company that is willing to pay good and not abuse you. For most of these companies I had to work outside of office hours and take home an on-call phone and laptop to assist after hours and it ruined my home life with wife and kids. I had no life outside of work...I got so sick and tired of it, I found a new job totally away from my craft of IT and am now working for Coca-Cola and love it. I made good money in the IT industry but it wasn't worth everything I was doing to achieve it and the corporations always find a way to push you to do more work without paying you for the extra work. Not saying getting a good job and pay isn't possible. My brother who is a Network Admin gets paid over $100k a year and he got there solely by working for an IT company who does architect software and on his spare time he would take certification tests and get certs and have his company pay outright for them or pay partial on them. But it took him years, and lots of sacrifice and time to get to that level, not to mention a lot of luck.
I would say find a job that incorporates a little of both, standing and moving. You will be driven nuts in a cubicle or office all day. You will always go nuts traveling everywhere to repair or replace things all the time as well. My favorite IT job was being a Service Engineer and traveling to sites for troubleshooting and equipment replacements. Also it is better for your health, you get lethargic and out of shape just sitting all day. Plus you get mentally fatigued. So I would say maybe check other avenues before going full on IT. You don't want to be stuck in a call center... Just my two cents, btw. Also if you have any questions or anything, hit me up. I would be happy to help or answer any questions.
Good luck with the new job search!
PS, no matter what field you choose...you will end up hating it and getting tired of it. Its the cycle of life. All my friends no matter what they do from making pizzas to being paralegals, to being micro-food engineers all get tired of their industry and want change. Sit in where you fit in I guess.