I recently finished knitting a Whisper Cardigan!
Pattern: Whisper Cardigan (Interweave Knits Spring 2009)
Yarn: Brown Sheep Cotton Fine (4ply) in "Cavern" - 3.5 balls
Needles: 4.5 mm, 3.5 mm, 2.5 mm
Modifications: I knitted the back so that it was longer. I also added another 10 rounds to the sleeves after the decreases and before the increases so that they were longer.
Notes: This was a really fun pattern to knit. The longest and most time consuming part was the ribbing around the opening of the shrug.