It is hard to understand your question.
If you sell a digital item for PayPal and as the seller there are tax / financial oblications, then you still would have those same obligations whether you accept wire transfer, or cash, or bitcoins.
Here's more info:
- http://en.bitcoin.it/wiki/Tax_compliance
If you want to sell something in exchange for bitcoins but not hold bitcoins then you can use a payment processor so that there is no (zero, nada, 0.0) exchange rate risk to you. Meaning you sell an item for $10, you get $10 sent to you (less payment processor fee, of about 1%). (Of course, there could be bank transfer fees for the payouts as well, but those are trivial in the U.S. and many other places.)