Transferring Diablo from PS3

Hi, I have bought Diablo 3 for my PS3 (a CD) and enjoyed the game a lot. I want to try to play it on my computer and was wondering if I need to buy the game again or I can somehow transfer my account at least (I read I cannot transfer characters). Thanks in advance, I am just very new to the online play and account (only played on the PS3 by myself).

PC and console versions are COMPLETELY different things.
You will have to buy the PC version and you will have to start from scratch.

Thanks for the info. Is it true you cannot play in local network with friends on the PC version? As in the PS3 you can play with other players on the same PS.

PC version can only be played online. No offline or local network modes.
Everything happens in the server.