I run a small design firm and we use xara, Illustrator, photoshop, InDesign and flash on a regular basis.

For commercial printing we only use xara for initial design elements and objects. They are then PDF'd over to Illustrator and then both vector and image objects from Ps/Illy are brought into InDesign.

For web we often use xara exclusively. We never use html export or even the slicing/exporting functions in xara though, we feel they are clunky and time consuming to work with. We also code everything by hand so typically we just select what we need exported and ctrl+shft+E. (if only there was a better layer system, but that'ss a different post =D )

When we design for a template service we always use Photoshop but sometimes we transfer vectors icons or similar objects from Xara --> PDF --> Illustrator --> Photoshop.