Black & White Photography

Just started playing around with black and white conversion using photoshop cs, since I would like to take some black and white photos this winter of the mountains and snow.  It seems to me you can get a little more depth and contrast of the mountains in black and white.  Not sure how much I like these photos converted, I used photoshops Image > Calculations to do it.  I got the tips from Ken Rockwell's "Making B/W in Photoshop" to get me started.  Let me know what you think.  The contrast of the aspens color in black and white is so great that I think I'll be looking to do some more shots of them in the next week or so.  Maybe take a trip over to Aspen CO next weekend.