Please help with resume

Hello Everyone,
I have really appreciated using this forum. I have learned so much from all of you. I could really use some constructive criticism on writing resumes. What do you guys think of what I have so far?
I have really appreciated using this forum. I have learned so much from all of you. I could really use some constructive criticism on writing resumes. What do you guys think of what I have so far?

Comments
Not too bad though I like the layout and I'm a fan of the bullet point format.
I was a little confused by order of your work history too - most folks go for reverse chronological order, and although the start dates are overlapping a bit, I'd list your current position first.
Next Up: Security+, 291?
Enrolled in Masters program: CS 2011 expected completion
"mobile data"
"network infrastructure"
I don't see these as proper nouns, and grammar is something you do not want to skimp on.