I USED to do tech support and got the following after I already had a job..
A+, Net+, i-Net+, CCA, CIW-Associate, CDIA+
The only thing that helped me was CDIA+, that moved me way off the support path. I now do nothing related to computers, and it's OK by me. 😛
And no, none of the certs helped, but I sure felt more confident after passing the exams!
I stll think the best "cert" you can get is a degree, so stick with it if that's what you're after.