Looking for picture (not photo) management software

[xizar]

From my days back in Windows, I have a *ton* of pics grabbed from the internet that I kept in their own folder.
C:\Pics\sillygifs\
C:\Pics\CoolWallpapers\
C:\Pics\Pr0n\
etc...
It was easy for me to sort through stuff, and I didn't worry about getting them mixed up with my photographs, and surfing through them as well as manipulating them was quite nice because of IrfanView.

Enter my transition to OS X...
While iPhoto is fine for managing my *photos*, having to sort through hordes of cats, Boris Vallejo paintings and clips of Keyra's butt while looking for my son's birthday party is a bit disconcerting.

So... is there an alternate solution I could use?

I'm not very fond of Picasa, as it stubbornly insists that it *must* catalogue every single fricking .jpg, .png, and harry on my hard drive, so I end up with a hundred tiny files that get spit out by Matlab or whatever.

 

[Clark Kent]

You could always make a new iPhoto library and put all your "other" pictures there. Then set the program to open your regular library by default.

Why download porn anyways? They have that on the Internet these days.

 

[xizar]

That's certainly an inexpensive way to go; I'll try that.

Is there a way to move the original files (not exporting or drag'n'dropping) the images from one library to another short of sifting through the old iPhoto library?