Garmin 200 or 500 would be my choice if you are interested in Strava-ing.
The 500 is a pretty nice unit; it's the one I currently use and I don't really have an impulse to upgrade to anything right now.
If/when Garmin steps up and dramatically improves the font of the Edge 500, I will upgrade and sell my 500. Love the computer and hate the display...font is much worse than a 25 dollar Cateye Wireless.