If you still use Posette and the Poser guy, Duane Moody has a really good series of freestuff face morphs for both. Many different facial types, ages, characteristics, etc. A search in Freestuff under "Duane" brings them up.

Barb: Clothing morphed bodies always frustrated me too, since I don't do a lot of nude renders. I found that the Tailor works very well to alter conforming clothing, but it's not a free item and it takes a little time to get the hang of it. However, some of the body character packs come with clothing morph fittings nowadays, or have some clothes-fits available as free items (Beth has files that will fit the RDNA Separates and Anton's Olympians to the Roxanne bodies as freebies.)