I recommend you get both of these:

Harmy's Despecialized Edtitions v1 AVCHD: These are in 720p, using the AVCHD format (which uses a DL DVD but will play on blu-ray players). There may be the occasional SE remnant here or there, but you will probably not notice them. Multiple audio versions included.

Dark Jedi's v3 DVD: These are in the DVD format, as DJ is still working on the blu-ray versions. These are upscales of the GOUT, so there are no SE remnants whatsoever. Multiple audio versions included.

Both of these have their pros and cons. Personally, I'm partial to Harmy's version because it's HD, and I find the occasional jaggies in the JD's v3 a little too distracting.

So get a hold of both of them and see which one you like more!