IDL is, indeed, the latest, most advanced technology.

I use it almost exclusively.

JoePublic posted a set of "General" lights that work very well. They are here: http://www.renderosity.com/mod/forumpro/showthread.php?message_id=4059148&ebot_calc_page#message_4059148

Also, make sure you get bagginsbill's Envdome, which basically handles outdoor renders (The done is self-lit and requires you to add only one infinite light to mimic the sun.)

It is here:

https://sites.google.com/site/bagginsbill/free-stuff/environment-sphere