Focusrite units are worth a look too (although I do like Roland and have a bunch of their stuff .. just not an audio interface curently)
They have two input devices fairly inexpensive (you'll want stereo for the keyboard).
I use a 2i2 for off site recording when needed (portable).

2i2 is USB powered and has a headphone jack and line outs for monitors .. pretty simple to set up

I do not work here, but the benefits are still awesome
Make your sound your own!