Yep, I already have Apollo and I think he's great! in fact I've used him in several of the pieces I've uploaded to my Renderosity gallery (see "Lie to Me" and "Highlander"). And trhe fact that he's free is just unbelieveable.
As far as Firefly, you mentioned IBLs... what is that?

Here's the link to my freebies:   https://www.renderosity.com/mod/freestuff/?uid=493127

My cousin Jack can speak to beans. That's right.... Jack and the beans talk