If you go with LEDglow.com (which i definitely recommend) I don't know if you can get a "open your door and the light turns on" set up... I would recommend getting their kit that comes with the wireless remote, and then tapping into your interior light fuse in your fuse box (underneath the glove box).... doing that means your lights will always have power, so you can turn them on or off with the remote before you get in the car. don't worry about it draining the battery, i've left them on all night before by accident... LED's draw very little power.
i'm also no professional, and i've only done this once. but that's how i did it... except i have a multi color kit with no remote... i wish i had the single color kit with remote, i only want red. i don't like having to "scroll" through my flashy bullshit settings to get to solid red.