I need some help building an infected hacker

I used to know the Matrix rules really well for 3rd Ed, but i haven't fully read and understood it for 4th Ed yet.
I had hoped I could be an infected Technomancer, but alas that was shot down in my previous thread. http://forums.dumpshock.com/index.php?showtopic=27524
So now i'm asking for more help.
I need to work out the minimum skill/equipment set i need to be an effective hacker.
I believe the only 2 skills i really need are Hacking and Electronic Warfare? I was planning on starting them at 6 and 4 respectively.
So i'm hoping that some kind soul will be able to point me to what i really need to pull off hacking.
I am attempting to do this without an implanted commlink or datajack... I was planning on hiding a trode set in some sort of headware. Now there used to be rules in 3rd ed where if you tried this you were alot slower in the matrix? Tortoise mode? I haven't read anything about that now, so i'm assuming that those rules have disappeared. Please correct me if i'm wrong though...