I've just spent the evening working with Plugsound Pro and I must say that it really exceeds my expectations. I wanted that one for the beatboxes but there are plenty of totally usable sounds. Even for such an older library, in many aspects it stands toe to toe and even outperforms the competition. 
 
I was browsing through the patches and taking mental notes - this I could use, this would work there, I need to try this one on that song, etc.
 
Looks like I have a new best friend. :P
 
And I just received my registration for Beat Box Anthology.

Been eyeing this one too, Rain. How would you compare it to SampleTank?

You can get Ping for free. http://www.uvi.net/en/

I have just got round to trying my free Grand Piano D. It is very good indeed.
 
I also like Digital Synsations but I cant warm to Mello. I think they did not pick the best Mellotron tape banks to start out with, and it could do with more of them to justify the list price of $99. I see no occasion when I would want to use it in preference to my Hollow Sun and GForce alternatives.

Fleer
Been eyeing this one too, Rain. How would you compare it to SampleTank?

I've not played w/ ST3 all that much - I've used it mostly for bass lines for demos, as I find it surprisingly good in that department. 
 
The rest I browsed and wasn't really impressed. And I hate browsing patches in ST - one long menu w/ disclosure triangles doesn't work for me.
 
Plugsound Pro made a much better first impression on me - particularly when I hit the orchestral and choir selections. I browsed "pragmatically", that it, looking for things I'd be likely to use and disregarding things like pianos, guitars and such.
 
But overall, I like it better than ST. It's much easier to navigate (though just like with ST, you can't use the arrow keys on your keyboard to do so) and better organized.  You even have a subfolder called GM, if you want to access the traditional set of 128 patches. 
 
I'll have to further investigate as, at 8 GB, it shouldn't be a match for ST and its 30 GB of content. But a lot of what comes with ST, such as world instruments and choirs, left me unimpressed - I prefer what comes bundled with Logic's sampler by a long shot.
 
In the case of Plugsound, I stumbled upon things that I already know I want to use.

You've sold me.  Looks like it gets my vouchers.  Thanks, ol pal.
 

Hope you enjoy it as much as I do. 
 
Otherwise, I'll feel pretty bad, I guess. lol

Then even if I don't I'll pretend I do, ol pal :-)

Cheers, Rain. Plugsound, here I come.