That's a tough one. Being one of your DL correspondents, but one that missed getting a chance to tell the listeners more about herself, I have a really unique perspective on this. I started out as a WDW girl. 5 trips a year. Now, we go to DL more. Part of it is travel, since we are DL local, but part of it is pure pleasure.
You need to ask yourself what you want to get out of your vacation. Do you want a small "quickie" immersion or a total head-first dive? The two locations are different vacations entirely!
Also, I really don't agree with everyone's comments about wait until 2010 or 2012. Frankly, 2010 sees the opening of Harry Potter land in Universal FL. I would rather save WDW for that year to include a stopover there. You have to remember that right now - there are really only 2 attractions down in DCA - The Wheel of Death and Golden Dreams. They haven't even taken the Stinger or any of the other Paradise Pier attractions down yet. Just because there's an empty lake that never had any attraction in it, doesn't mean the park isn't functioning.
It's up to you what you choose - the DIS will be here to help you plan it all, but don't base not going to DL on what you are hearing now.... The guys failed to mention in the podcast that the reason the parades are down is due to refurb of the trolley tracks on Main Street. That's why the fireworks aren't happening all the time, too. If they have a chunk of Main Street down for rehab, then where do people cluster for fireworks. Fantasmic - which is normally closed right now, is open every night. Then, it gets it's rehab when the street is done at the end of the month. Simple normal rehab. Parade will be back, then, too.
Decisions, decisions......