If you're going for a consulting job, you need to emphasize exactly how "billable" you've been in the past and at what rate. I always hired guys who were 110% @ $250/hr. vs. guys who sat on the bench.
If you'll be interviewing for an inside IT job, then emphasize how much money your work saved. For instance, if you do IP Telephony, show the cost savings for the company. This shows that you have business acumen and a strategic bent towards IT. Anyone can install switches, you need to show that you understand the business impact.
Also, harden up the top section of the resume. I'm not sure if it's supposed to be your Objective or a Summary of your skills. I would make it more customized as an Objective depending on who your interviewing with.
ETA- This is a good resume. Just needs the tweaks.