Shoot me an email if you want to talk about this some more. I don't look back on this same Trulia thread for answers posted after mine.
Realtor Since 1996
Either install wood slats (classic) or bamboo slats. I happen to like bamboo from the floors I've seen and it's environmentally friendly. Oak or Spice coloring, not too dark and don't use whitewash either.
For some photos http://www.lowes.com/pl__4294856494__
If we can help with any other questions....