A big announcement for anyone who loved the old DBZ PS2 games (and thankfully not the 3D Tenkaichi games...), both Dragon Ball Z Budokai 1 and Dragon Ball Z Budokai 3 are being remastered into HD and put together on a single disc, called Dragon Ball Z HD Collection. Oddly, there is an obvious lack of DBZ Budokai 2, but the developers at Namco Bandai had said that these 2 games were the 'fan favourites' of the series and were therefore the only ones remade into HD.
The games are due to be released on both the Playstation 3 and the Xbox 360 this Winter in both the European and American markets. Thankfully, for the trophy/achievement hunters amongst you (you know who you are!) the game will support both of these reward systems. I personally hope there are a few trophies for the power struggles, as that was one of my favourite additions to DBZ Budokai 3.
Finally, for your enjoyment here is the announcement video from Gamespot, which includes quite a few fan-questions, along with a Goku vs Gohan battle between the developers at the end!