I have now managed to re-base most of the already-painted 25mm ancients. Pictured below are the Assyrian infantry (spearmen, archers with shield bearers and skirmishers) and Sassanid levies, all Hinchliffe. I previously owned some similar Sassanids - as I remember the levies were rated in the old WRG lists as 'Irregular D' (the worst class of troops under 5th Edition...) and their performance in my hands always lived down to expectations.
As for the Assyrians, well I always wanted an Assyrian army - why not:
1. they impaled captives on spears
2. they had loads of groovy siege kit
3. the huge 4-horse chariots are very cool (but then I write as a lapsed Volvo driver...)
Cavalry and chariots are on order from HAT...
The now notorious 'Camelphracts' (centre) and friends.