I can't help you with software, but here is the technique I use in PSE 8:
The technique is called luminosity blending.
Step 1: Press Alt and double click the words "background layer". This changes the layer name to "layer 0" and makes it possible to add a layer below what used to be the background layer.
Step 2: Press Ctrl and click new layer to add a layer beneath layer 0. Fill this layer with white. This layer is named layer 1.
Step 3: change the layer mode of layer 0 to luminosity.
Step 4: Press ctrl-alt-shift-E four times to create 4 new layers named layers 2 through 5.
Step 5: Deactivate layer 5. Change the layer mode of layer 2 to screen, layer 3 to multiply, and layer 4 to overlay. Adjust the opacity levels until you like what you see. I first leave the screen layer at 100, change the multiply layer to between 30 and 50, and change the overlay layer to 20-30. I then adjust to taste.
Step 6: Activate layer 5. Go to filter-->other-->high pass and enter the pixel radius of your choice. Something around 4 is good but I've used a radius as high as 50 just to see what would happen.
Step 7: Change the layer mode of layer 5 to overlay. Adjust the opacity as needed.
Most if not all of the photos in this set
Black & White - a set on Flickr use this technique.