Iphone 3G wont turn on past apple logo! Please help!

It froze after attempting to delete my facebook app and I turned it off, tried to turn it back on and it wont boot past the apple logo screen. Ive googled the problem and I found that I needed to reset my phone by holding down the power and the home button (which I did) and plug into my computer while holding down the home button then a "connect to itunes" screen would pop up. Well, I did this successfully and Itunes said it had to download a new update for the phone. while downloading, the apple screen went off and the screen went black, Im assuming it turned off and when I tried to get it to the "connect to Itunes" screen again it wouldnt. I continued the process again and now it still wont get to the "connect to Itunes" screen and will only show the apple logo screen. I tried calling apple support and they want $30 just to talk to them. No thanks. Please help me. I have no idea what else to do.

PS...I am not tech-savvy and Im not great on understanding computer talk.