I'm at work right now so can't show you an image....

But I took PhilC's Victorian men suits for the P4 dork and used Wardrobe Wizard to fit Mike3 and they fit perfectly and look very much like late 1800's mens wear

http://www.philc.net

Poserworld also has a great set that's really supposed to be for a Dr Who character, but has a kind of late 1800s look.

It's harder to find male Victorian clothes  - there's a bunch for women models.

The April Ashley dress at DAZ is awesome for V3. The dress has excellent posing movement.
DAZ also has the Victorian coat and some era texture sets for the V3 morphing dress.

With Wardrobe Wizard I was also able to make the Aiko Infamous/Scandalous dress convert to V3 (while saving all the morphs) and fits great.

http://www.poserworks.com has an excellent London Cab  - comes with their own horses.

http://www.runtimedna.com has a fantastic Whitechapel/Baker street set that's awesome.

Liteluvr also has a fantastic East End street set here in the MP.

Ness's work is fantastic - Acadia led me unto his/her stuff just recently

Geralday also has a ton of freestuff - some is Victorian themed