Looking at the Garmin Forerunner 305 GPS Personal Trainer

[jennylopa]

Hello,
I'm looking for a reliable GPS device for driving around in Guadalajara, Mexico. Can anyone provide me with some suggestions? I currently have the Mio 310x and they don't have a map for Mexico and I have already sent a request to the Mio-tech website for assistance. I have searched for some third party maps, but I didn't find any.
I was looking at the Garmin Forerunner 305 GPS Personal Trainer - 010-00467-00. Any comments on the usability on this one? I believe that the map is about 191.95 dollars on www.direct2deal.com. The only person who rated this map gave it 1 star.
I was also looking at the Garmins and the nt v2 map of Mexico. It seems pretty decent, but it costs around 200 bucks. Does anyone have experience with this map?
Thanks in advance.