Im rendering on a 1.13gig PIII cpu at 133mhz bus, 1.5 gigs of 133mhz bus SDRAM, and with anti-alias renders and any kind of lightset other than default poser lighting, a single character render from a 30-60ish MB pz3 scene will take my system anywhere from 5mins to 10-20mins if using a complex global lighting set.

Im relatively new, but it sounds to me like there is nothing unusual in your rendering speeds considering your cpu speed and the DDR RAM you are using :)

Lately, ive found that after a render, my poser NEVER returns to user control mode until I unfocus and refocus the window (clicking show desktop or opening another file or dir, then clicking on the running poser taskbar icon)

Havent decided yet if this is due to my OS getting tired and worked from a year of surfing the net, or bloating of my Poser Runtime :/

Hope this helps,

Logan