I use VueScan now and get great results but I tweak in Capture NX. You should be able to turn out something like what I've attached below with a little tweaking. We probably need to take this over to DPUG now though before we get chastised since this is heading toward forbidden hybrid territory in this forum.

Some Provia

20110508r01_19_fuji_provia100f_f4.jpg
20110508r01_02_fuji_provia100f_f4.jpg
fuji_rdpiii_ar_100720-034.jpg
fuji_rdpiii_f4_100800-026.jpg
fuji_rdpiii_f4_100800-040.jpg
20120805-02 fuji provia 100f nf scan-120805-0011.jpg

Velvia for comparison
20120705-03 fuji velvia 50 fe2 scan-120706-0009.jpg
20120705-03 fuji velvia 50 fe2 scan-120706-0008.jpg
20110213r01_28_fuji_velvia50_f4.jpg