I just found out that Steam is offering Oblivion GOTY Edition Deluxe (that's Oblivion with all DLC) for 6.24$ US, so anyone who doesn't already have the game and all DLC on PC will pobably want to get it now, there's about 15 hours left until the sale ends.
I can finally ditch my old PS3 version and play with the mods and add-ons (only KotN and Shivering Isles are on PS3 (and KotN is only in the KotN Edition or GOTY Edition, not on the PS Store)).