Likely to coincide with the release of the Fate/zero anime, Good Smile Company just released their set of Nendoroid Petites of characters from the original Fate/Stay Night. This set comes with Saber Alter, Archer, Lancer, Caster, and a surprisingly large (for a Nendoroid Petite) Berserker, but I’m sure that’s because they wanted the scales to be relatively correct.
One should note that these are Nendoroid Petites, so they’re only 65mm tall, excluding the 100mm-tall Berserker.
The full set (yes, all of those characters) is currently priced at 3,800 Yen, only $50, on AmiAmi.jp here. It’s a good deal, as most Nendoroids generally are.