It's generic because there are so many different ways to go about it... Dwolla's by far the cheapest for US users (should only be charged $.25 total for the transfers between your bank and Gox).
[First 6 steps optional. If you already have a Paypal account, some people
may be willing to sell you Bitcoins at a premium for USD in Paypal. Check out the Currency Exchange subforum @
https://bitcointalk.org/index.php?board=53.0 -- it's quite possible nobody will be willing to sell to you because PayPal is ill-suited for such a transaction.]
1) Open a Dwolla account. Gox doesn't handle bank->GoxAccount except for expensive wire transfers.
https://www.dwolla.com2) Tether bank account to Dwolla (very similar to Paypal) @
https://www.dwolla.com/in/accounts.aspx?a=add3) Initiate ACH transfer from bank to Dwolla @
https://www.dwolla.com/deposit4) Wait ~3-5 business days for transfer to clear.
5) Goto MtGox, transfer funds from Dwolla to Gox account @
https://mtgox.com/trade/funding-options (FOLLOW THE INSTRUCTIONS!)
6) Buy bitcoins. I'll assume you're ignorant, not retarded, and can figure this out yourself.
7) If you're buying on a Tor site, deposit funds into your Tor site Bitcoin wallet by using
https://mtgox.com/trade/funding-options -- use the BTC address assigned to you by the Tor site.