If you're inside the US, the easiest/cheapest way is TangibleCryptography, as linked above, or Bitfloor.com
Both accept cash deposits at various banks (WF, Chase, BOA) that are credited close to instantly.
Tangible uses MtGox's exchange rate at time of deposit, sometimes with a discount. Bitfloor is a full exchange with an order book.
Both have excellent customer service.
Other services may charge exorbitant fees, so read the fine print before buying anywhere else.
Cheers jwzguy!
I am considering TC's service, it sounds great, but I'm not sure if I want to exchange as much as $500.
I am in the UK. Are there any good options here?
Thanks!
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