Monochrome combination of shades of gray will look quite boring without a bright, accent on the attention, the colors. So color can be yellow - it will add color and give a "fresh" look gray room
Buttoned Tones - http://design-seeds.com/home/entry/buttoned-tones
ROTI Keynote Template
Great photo frame template set
http://erolaboix.com/Andbanc-Brochure - created via http://pinthemall.net
Extremely interesting use of typography and layout design. RNLI Catalogue by Ciprian Robu
This annual report is really aesthetically pleasing while still staying true to what Google is all about. You can see the use of a grid, and the layout is really great overall.