Edit in Photoshop
Lightroom is an 80-95% solution for photographers.
Most of the time, you can import, tag, edit and
output your images right from Lightroom and forgo the
multi-app shuffle that was so prevalent before 2007.
However, there are times when you need to do some
heavier lifting (read: compositing, local corrections
such as dodge/burn, HDR, Panoramas etc.). Most
realize that Photoshop CS3 is an indispensable tool
for this type of work, and many photographers who
have Lightroom also have Photoshop (and many came
from Bridge/Photoshop to Lightroom).
Photoshop CS3 gives you an extra set of tools that I
find sometimes useful in a small percentage of my
work. Thankfully, Lightroom has a few options for
round-tripping your images from Lightroom to
Photoshop and back and it looks like George Jardine
(our pro evangelist and podcaster extraordinaire) has
posted another tutorial that covers the "Edit in
Photoshop" workflow. Highly recommended.
This tutorial can be downloaded from his iDisk
at:
http://idisk.mac.com/george_jardine-Public?view=web
You can also subscribe to it in iTunes. Just search for Lightroom in Apple's podcast directory.