Herb Dehydrators

 

http://www.amazon.com/Nesco-American-FD-80-Square-Shaped-Dehydrator/dp/B00179DCCQ/ref=sr_1_1?ie=UTF8&qid=1325475676&sr=8-1  4.5 stars and $60 for dehydrating food, vegetables, herbs and jerky.

http://www.amazon.com/Nesco-American-Harvest-FD-37-Dehydrator/dp/B003I4F7AS/ref=sr_1_3?ie=UTF8&qid=1325475676&sr=8-3  4.5 stars and $35. Dehydrator is expandable to 7 trays. Forced air fan means no tray rotation.

http://www.amazon.com/Nesco-American-Harvest-FD-1018P-Dehydrator/dp/B001795P4O/ref=sr_1_4?s=home-garden&ie=UTF8&qid=1325476153&sr=1-4  4.5 stars, 1000 watts, adjustable thermostat, 8 trays, fruit roll sheets and a How to Dry Foods book. $145 to $190. These dehydrators are all more expensive than using your oven or hanging your herbs but the drying time is reduced and you gain a lot more control over the dried herb product.

Here are some good discussions for and a few against using a dehydrator to dry herbs. Most are for them.
http://edibleandmedicinalplants.tribe.net/thread/6e733aea-ea3e-438a-aaf0-eeeb9f6202e7