It's actually possible to get 3-4 source points in act 1
Well, actually...
Radeka's purging wand. 9 (?) charges, 9 points.
Purging wand from the Illusionist's cave. 9 (?) charges, 9 points.
Standing source by the burning buildings that provokes a voidwoken ambush. 1 point, 3 with Bless
Stnading source by the Voidwoken Deepdweller. 1 point, 3 Blessed
Standing source in the torture chamber under the vampire maze. 1 point, 3 Blessed.
Helm of Braccus Rex. 6 points
Withermoore's soul jar. 1 point (only point before leaving Fort Joy. Special: do not need your collar off to obtain it.)
Souls from the vault in the Illusionist's cave: 6(?)
So there's a few Source Points in Act I.
does that include the standing source in the "elf cave" in the fort? where the 3 frogs spawn.
if not, then add that one too.
I like the idea of "source vampirism", but it should be either an automatic thing (like for every "X" levels of enemy you kill, you get a source point), or else part of a skill/talent system in and of itself. it's a pain in the butt as it stands right now, and if the idea is to get people experimenting with source skills, the game is not doing a good job of that so far.