Oh I have yet to pug ulduar so I wouldn't know for that. My references were for 3.0 content. 3.1 I've been doing exclusively with my guild as I much prefer to avoid the wipe fest (and the fact that pugs don't seem to get past the first couple bosses)

2.5-3k DPS for Ulduar 25....are you insane? You *might* be able to kill trash with that. Maybe for the earlier boss fights after they've been nerfed to the ground, but come after XT, DPS would need to do a minimum of at least 4k DPS, some even more like Council/Thorim/Hodir where 5k DPS isn't uncommon, or 10k of you adjust the numbers accordingly for Hodir.

If you're Naxx25 geared and can't do more than 3.5-4k DPS, gtfo.

And agreed with Exodeus. My Warlock was doing 2.5k DPS at 70, so if you can't even do 2.5k DPS at 80 with Dungeon/Quest gear, you're either lacking skill or simply a downie.

yeah....most of the people i raid with do 3.5-4.5k...the numbers i threw out were a minimum.

It does say "before starting 25-mans," so I think you can assume it means at the basic level of naxx-25. I would imagine you want to do it at least a little before you jump into ulduar-25.

"Start heroics when you can do around 1400 dps. Start 10-mans when you can do around 1500 dps. Start 25-mans when you can do around 2000 DPS."

Start heroics as soon as you ding 80. Start 10 and 25 mans when you are almost fully geared from the best things you could get in heroics for your spec. Simple. Don't enter raiding early unless you KNOW that you are pro enough to handle it (in which case, you can squeeze 2000 DPS out of questing greens anyway).

Do some research about your class, the theorycraft, your spec, and your rotation. There is no reason anybody should ever be playing correctly and doing less than 2000 at level 80 no matter what endgame-level gear they are wearing.