Having been obsessed with the deleted scenes being re-integrated into the prequels since the DVDs started coming out, once I upgraded to a computer that could handle it, I found SithLord's Extended versions (the PAL ones with the Swedish subtitles only). Then I ham-fistedly made my way through freeware, trial versions, and tutorials (thanks to a lot of information here) to correctly subtitle the alien languages and redo the opening menus. However, the SithLord versions are also SL, and as I watch only these versions now, I'm not satisfied with the quality.
Eventually I've been planning to do my own DL extended edits once I have the time, inspiration, and extra cash for software (which probably I'd be wiser to skip and go straight into trying to make HD versions). However, though I've not seen them first hand, I'm guessing ADigitalMan's versions would likely be nearly identical to what I'd make, IF they existed in DL.