EDIT: You need this. It will update your ARIA Engine and fix some bugs. It's not just another SFZ Player that you think you may not need.
The Plogue Sforzando SFZ Player(click image for webpage and download)Plogue, the developers of the ARIA Engine, released the free Sforzando SFZ player a month ago. Like the ARIA Player, it's a VSTi and stand-alone SFZ Player. It shares the same ARIA Engine you have on your computer.
There was a bug fix with the release of Sforzando. Pitch Bend, as I use it in my SFZ instrument The Autoharp, had been broken in previous ARIA Engine updates, but now that's fixed.
Downloading and installing Sforzando will get you this newest and free update to your ARIA Engine. So, though you don't need an SFZ Player, since you have Garritan ARIA, you will benefit by getting this update to your ARIA Engine since there are several bug fixes.
AND - Plogue also released a great collection of FREE sounds/instruments to go with Sforzando. Like all SFZ formatted instruments, they'll play in your Garritan ARIA as well as SForzando.
Free Sounds Volume 1-
11 Instruments from Garritan
14 Instruments from Digital Sound Factory
CR-909 Electronic Drum Machine, thanks to Analog Industries
Various Instruments from PatchArena, Plogue and More!
There's a sample set of the legendary Mellotron, with flute, violin, and brass samples.
There's also a great Toy Piano, the Siel Orchestra Strings Ensemble and a lot of other sounds.
That "CR-090" in the list above is the classic Roland TR-909 drum machine. As it says in the instrument's text file:
"This is quite possibly the most complete sample set of the Roland TR-909 drum machine you're going to find. It has every control on the unit recorded with 5 positions..."
More sounds on the page include Bowed Vibraphone, Guitar STeel Chords.
You can drag and drop SoundFonts to the Sforzando interface, and they're automatically converted to SFZ instruments! That's a huge bonus for people who may have struggled with other ways of converting SoundFonts.
The Overview video shows you what this is all about.
The Sforzando was mentioned earlier on the Forum, but I don't think the significance of it was fully grasped. I announced the release of the player on my thread which explained that the ARIA Engine update fixed the bug that had broken my Autoharp:
ARIA Engine update thread
You'll see that Sforzando is simpler than Garritan ARIA. You can load one instrument at a time, and there aren't built in FX. Just remember the reason you want this is because your ARIA Engine will be updated with the bug fixes.
Go for it!