LEEDROID......JENKINS!!! lol LeeDrOiD is as close to stock as you'll get but with amazing tweaks and not half as complicated for adding certain features and animations as Android Revolution is. Everything can be found in the ROM Packs thread at the top of the forum

 

I don't think the M3 matters at the moment. Generally though, you'll need to flash a new radio once you've installed your new ROM.

LeeDroid and ARHD are popular Sense ROMs, there are complete guides to installing them here: http://androidforums.com/desire-hd-...ks-leedroid-arhd-miui-updated-06-09-11-a.html

It also gives instructions for installing a ROM called MIUI which is pretty different from most others (there is no app drawer, all your apps are on your homescreens) so it might not be to your taste. It is pretty popular though so there's no harm in giving it a whirl.

There's also CM7 which is pretty much Vanilla Android with none of the Sense nicities (it's a lot faster and more customisable though).

Edit - Took too long to type

 

Yep, have you rooted and got S-OFF, ENG S-OFF etc yet? You'll need to get those before you can go any further. It's easy, downgrading is the hardest part.

There's also a link in my post giving download packs (containing instructions) for LeeDroid, ARHD & MIUI.

 

Yes each of the packs contains a README which outlines every step you need to take so long as you are already rooted, ENG S-OFF and Radio S-OFF with Clockworkmod Recovery installed

 

You'll be fine!

 

You can, but it's probably better to do it manually (as instructed in the download pack) as that will format your partitions to EXT4.

I appreciate it does look a tad daunting, but the instructions are pretty thorough. I'll be about for a bit if you get stuck with anything too.

 

No probs.

Best to make sure you fully understand what you're doing before you do it.

 

Good stuff!