So its been a long time (almost a decade) since I've really been in the market for some sort of cyclo-computer. Doing a little research and they seem to be either really basic ($20- $40) or what I would deem very expensive ($200+). My knowledge only extends as far as attaching little magnets to a wheel and pedal, trying to line it up with a sensor (turned not too close or too far away from it) and hoping vibrations wouldn't dislodge either.

Long story short, I find myself at a stage in life where I want to start hitting the bike hard. I need to get fit and back in shape. So I am looking for a cyclometer (and all the gadgets needed to make it work) that will measure:

-Cadence
-Distance
-HRM (if possible)
-Power(if possible)

Hopefully something that is affordable. I am debating if I need it to have GPS capabilities - I've moved from CO to UT recently and don't know any of the roads out here. Where I was in CO, having a map was rather pointless as there were only a few options as far as roads were concerned or I was on easy-to-follow bike paths. I can try and 'stretch' my budget if it can be justified. Does anyone have any recommendations?