Chromix has a deal on the OPTIX:
USED/ OPENED PRODUCT FOR SALE - ColorNews newsletter-only specials
10 ea opened Monaco Optix XR (New $219) $165 <-- - price drop
[{POST_SNAPBACK}][/a]
I second Andrew's strong recommendation of Optix, or Xrite i1 Display 2 over the Spyder product.
The i1 software usually gets the job done; but my recommendation for software is ColorEyes (they won't talk to me but their software is excellent), or Basiccolor Display. Both of these have fully functional free demos so you can test them risk-free.
BTW, anyone interested enough in this topic to spend the dollars on a calibrator would probably benefit from purchasing Andrew's very practical book entitled [a href=\"http://www.amazon.com/Color-Management-Photographers-Techniques-Photoshop/dp/0240806492/ref=pd_bbs_sr_1/104-9896595-2245544?ie=UTF8&s=books&qid=1186259878&sr=8-1]Color Management for Photographers[/url] which he is too modest to advertise himself.
Edmund