CacheTrack plays well together with your traditional GPSr 
CacheTrack is designed as an all-in-one solution for geocaching on S60 mobile phones (it might support other Java enabled phones in the future) but certainly you can use it in combination with your traditional GPSr (e.g. Garmin Etrex).
In this combination you can use it e.g. to record your tour to archive, view and analyze it later on your PC (or Mac or Linux box) using Google Earth. Last not least it's perfect for taking the cache description with you without the need to waste paper for printing it.
Since it's quite common (and a good idea) to take a mobile phone with you when going out for geocaching CacheTrack is a perfect fit even if you rely on your Etrex to find the locations.
