I don't really have a great need for lightroom, I have my own filing system that works perfectly for me albeit very simply.
Lets face it, there is not much in Lightroom that isn't part of the Bridge/ACR/CS2 triangle. If you are used to using them then Lightroom doesn't offer much of an advantage other than the Library/Cataloguing. To date there are still several advantages to Bridge, not least the ability to run actions to photoshop, it has a slideshow and different views and CS2 has a number of built in slideshows including flash.
A couple of things that perked my interest up, the develop tools, especially the advanced curve with shadow/highlight features would be very welcome in ACR, added to that, some of the features that bridge has which to date are rather slow could do with the added functionality.
My question is whether bridge and maybe to some extent ACR will be neglected as a result of lightroom. Will ACR get the updated develop tools while retaining the ones it has? Will bridge be speeded up and maybe have a bar for ACR to run in while viewing photos as in Lighroom and RawShooter?