I'd like to have a computer that shows the speed, temperature, time, and my heart rate.

I have a Garmin HRM-DUAL heart rate monitor belt, which uses ANT+.

I don't need GPS or any of the more high end features you see on Edge 830 and so on. I'm aware that an Edge 830 can be just configured to show me exactly what I want, but I find it too expensive for what I need.

Any suggestions?