see my last render, i didn't use AA and AF, still it's very sharp
the render time is about 25 minutes
my system: intel core duo t2300(mobility version), 1 gbyte ddr2
Loads of things wrong with it, but I only realised when I had left it rendering for 8 hours over night, oh well - nothing a bit of soft focusing can't hide
Rendered using MLT in Kerkythea (Kerkythea.net) via Blender.