Granted, the Tech is fairly easy. I took a practice test -- in the blind -- (as in never even studying anything) and I passed it (although barely). The key is to take a lot of the practice tests. I was taking 5-6, if not more, a day. I also made up "flash cards" for key things just so I could practice when I was not around a computer. If taking the practice test, keep track of the ones you miss, and make up a flash card for it. Also Freqs, OMS Law, symbols, and formulas are also handy on flash cards.
One thing is when you do take your test -- TAKE YOUR TIME, AND READ EACH QUESTION CAREFULLY.
I almost missed one, T-5D09, because I had not read it carefully at first, and had went with my gut. I went back and re-read it, and realized I had made a mistake, which I corrected. As a result I ACED it. The key is to take a lot of the practice exams, and study. When you take the test, relax, take your time, read each question carefully. If you have a problem with one, skip it, and come back later. Double check your answers, and write down your notes if needed (OMS Law for instance).
As the others have said -- you should pass it with ease.