M-Quark-K
don't worry about the preview in Quark, it's not encouraging I know, but my tiffs have always printed correctly despite the dayglo look on-screen. I trust their appearance in Photoshop, and am getting used to seeing nasty things popping into picture boxes when I import into Quark.
I have also recieved counsel from my prepress houses not to use the image editing functions in Quark but to do every thing in Photoshop, except moderate scaling down of images (to 60% not less).
tiff or eps ? well six of one, half a dozen of the other, but you can get a good preview of any image you import if you have the full res preview plug-in (select image box; menu block > preview > then take your pick) but viewing images in full res will make the programme run more slowly.