Lex-
Here's what I do:
1. Import from CF card into Lightroom as DNG with full metadata: keywords, copyright etc. Backup converted DNGs immediately, discard original camera raw files.
2. Edit shoot using Pick flags first, then Stars, to filter down to final selects. Pictures that don't make the cut stay in the library for a while... but will likely be deleted later, after further review.
3. Process (Develop) the final selects in LR as fully as possible - but at this time no sharpening applied in LR, and only modest noise reduction if needed.
4. Edit in Photoshop CS3: first, Noiseware if necessary, then PhotoKit Capture Sharpen, PhotoKit Creative Sharpen, Dodge & Burn using Adjustment Layers and/or painted pixel layers and finally, any necessary additional retouching. This is the Master file - saved as TIF with all layers intact.
*Compositing would be done at this stage, too...
5. When Master file is considered DONE - Soft Proof for intended output(s). Add adjustment layer groups as necessary for expected output.... all in the Master file.
6. Notice that all this is done at NATIVE RESOLUTION. No resizing on export from LR and no resizing of Master working file. Resizing is done only when needed for output - including printing, or web galleries, etc.
7. You can bring the layered file back into Lightroom, or flatten first (then Synchronize)... Ideally, aAfter flattening and resizing to final print size, PhotoKit Output Sharpen for the printed output. Save flat print file if desired (I don't, unless I'm making lots of prints at this size).
8. Print from either Photoshop or Lightroom. I'm moving more toward printing sets of images from LR, but single large format prints I still am doing from PS (though they do get added to the Catalog eventually).
Remember to Save out your Metadata frequently!!!
Hope this is helpful... I'd welcome other's suggestions for improvement... as we all know, "workflow" is always evolving...