What camera do you like?

We currently have an old school axis camera 210. My wife fucks other men in our bedroom and I watch either from the spare bedroom or sometimes from work. However the video quality just isn't what we'd like. Any recommendations for a decent price. I can't afford a lot but this just isn't enough for me. Partly its problematic because we have to keep it a little hidden. I have ethernet and power.

I am not worried about software we have good collection stuff and sharing stuff, so the camera itself is just the optic/audio vessel.