Julie,
shot with my 30D, cropped sensor. I took over 2 dozen shots that morning and Rowdy just held his stack and let me toss milkbones. He's the best model ever.
The 85's shallow DOF lets you do some really nice subject isolation from backgrounds. Haven't really tried it with specular highlights but will do that once it arrives. What impressed me was that at 1.8, it's as sharp as most zooms at 5.6. Not bad for a non "L" lens.
The longer I shoot, the more I gravitate back into primes. You occasionally have to "zoom with your feet" but when you need absolutely the best IQ, they are unbeatable.
Jim