open the models your looking for in the model viewer acompanied with the hl2 sdk and i think you can easily find it in there..
You don't have HL2 yourself, I assume?
Anyway, Alyx is a bit over 8.000 poly's, a combine soldier is roughly 4.500 poly's, excluding weaponry.
Alyx uses a 1024x512 map for the head and a 1024x1024 map for the rest of the body, and a few small additional maps for the emp tool, eyes and mouth and such. Think of average 64x64 maps.
Combine soldiers use a 1024x1024 map and as far as I know no other maps. They don't have a real face anyway... 
this may help:
[Blocked Image: http://www.zeroproof.com/bicball/polytexture.jpg]
Ooooh, I'm glad someone brought this up as I was going to ask a similar question.. For single-player do you think that 512x512 for face, legs/feet and torso/arms/hand is sufficient for a single-player character? I mean 512x512 for each segment, not all the parts.. I'm not actually working with source yet but I will in the future so I thought I should ask.
Depends on what sort of character it is, if it has a human face or not and if the player will often see it up-close or usually from a distance. I would use the Valve models as a reference for it, if I would be doing characters...
I think 512x512 is fine for a character.
is that a vtf plugin for photoshop? whered u get it? ive been using that batch converter... no fun.
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