Bought the gymboss interval timer ceaze posted about a while back and finally got to use it today. I must say it really helps me with my 8x2 worksets. It can be set for auto or manual mode which lets you choose if you want it to continue to time intervals or if you want to set off the interval yourself. It vibrates and beeps which is nice and its pretty small and easy to program and read. For $20 it was well worth it. www.Gymboss.com is the site for it. Just figured I'd give everyone a head up especially if you use timed intervals for your training.