The Lutron Maestro series has a C-L version which is what you need if you like the push button type dimmer. If you have four switches controlling the same bank of lights then Lutron says you need a C-L dimmer and three companion dimmers. It's a bit complicated because with two switches you can use a dimmer and a switch, but for more than that you need companion dimmers although the signals to the dimmer seem to be the same as with just two. Anyway, I got a really helpful Lutron guy on the phone when I was going through this and he walked me through all kinds of scenarios.
The Maestro series is programmable in that you can set the max level, min level, fade times, etc. Sounds like a good match for your need. Check it out in a store demo to make sure you don't think it's too fussy. Push on/off, rocker for dimmer/brighter. You can get the instructions online.