Sure, I'll play it anyway. HL1 is pretty different from HL2...there's the headcrabs and headcrab zombies, but other than that there barely are any similar enemies in the two games. Should make for a non-deja-vu feeling.
I am most anxious about how they will tackle the final part of the game.

(I won't spoil it for you, but the other HL people will know what I mean)
Happy to see the "plant tentacle" thing in the game...that was a really cool part of HL1.