Today on Woot.com there is a pretty good deal for anyone that might need a heart rate monitor, but doesn’t want to spend a lot of money.   “It’s the Reebok Precision Trainer XT Heart Rate Monitor with Chest Strap” for only $19.99 + $5 shipping

For anyone wondering, www.woot.com is site that I have personally used to buy products at a discount and they have always been a great online store with great service and reliability for me.  The number of items will be limited on this sale, so if you’re interested I would suggest you buy the item before it goes out of stock.
(From the site)

Features:

• Chest Belt included for continuous heart rate.
• Time/Date (12 or 24hr)
• Alarm
• Calorie Couter
• % of Max HR
• User Menu
• Personal Profile
• Chronograph
• Hi/Low Alarms
• Timer
• Memory
• Bike Mount
• Water Resistant to 30mm

In the box:

• Watch
• Heart rate transmitter belt
• Mounting bracket
• 2 x CR20232 lithium batteries – already installed, one in the watch and another in the heart rate transmitter belt
• User Manual
• Warranty Slip