I am looking for samples/VSTs that include the Viola da Gamba & Lute.
Does anybody know where I can find them?

Some excellent lutes from Bolder Sounds (http://www.boldersounds.net/) in their early music collection - I've gotten them and used them (They are Kontakt instruments) - Ron

This one looks interesting:

http://www.soundsonline.com/ERA-Medieval-Legends

There does not seem to much out there. I would say  +1 for Bolder for lutes but you will need the FULL version of Kontakt to run it.

This one from Soniccouture has two Theorbos (a type of lute) will probably be very good indeed and will run on the free Kontakt player, but its not cheap!

Searching for a Viola de Gamba came up blank. I found an old thread in these forums which lead me to this WAV format set has some Viol samples. I have No idea what its like but its cheap enough to take a risk on

Glyn Barnes

Searching for a Viola de Gamba came up blank.

Amend the spelling to "Viola da Gamba".

Kev999

Glyn Barnes

Searching for a Viola de Gamba came up blank.

Amend the spelling to "Viola da Gamba".

Still nothing, apart for Era which you already mentioned. I wonder if a judiciously EQ'd Viola would approximate the sound?