I really like the game. Nice work!
And by the way, if you're looking for voice acting, why not buzz the people of Valve? They have always supported the freeware community, so (though it sounds crazy) maybe a few of them would like to help. I know from their games that the voices are always top-notch, so I think it would be really cool to do so.
Also, what I think you should do is form one huge game, and maybe sell it. Put it on a CD (or DVD if nessacary). That way, you could make the backrounds at a higher resolution, add more music, more special effects, and more things to do in the game, without people ignoring the game because it's too big of a download. Although, you could make a CD AND downloadable version, for people who don't mind downloading the massive file size and for people with dial-up, so they don't have to deal with the massive file size. Also, I may be able to try and record voices. I don't have any experience in the field, but I could invest some of my money into a high-quality mic and give it a go. I've always felt like a freeloader in the community, taking games and not giving any in return. And, since I'm not a very good artist, coder, or script writer, I need to think of something to do, don't I? I could send you a sample that I record and you could decide for yourself. For pricing, I'd say $10-15 would be good. Especially for how scary and immersive your game is. I've seen blockbuster titles with worse quality!
Before I say anything else, I would just like to assure you that I am not being sarcastic. If I remember correctly, there was a little misunderstanding last time we met.

Also, I would like to add that you could also go the way that the people at TellTale Games have, releasing episodic content for a low price. Or, maybe not for this kind of game, since continuing it for 100 episodes would be a stretch of content, wouldn't it? This game freaks me out, too. And honestly, besides the Yahtzee series, a game has never made me turn on all the lights in the house, blasting The Beatles through my small speakers, looking around anxiously to make sure no invisi-person comes to get me. I'm starting to sound like that insane guy now, aren't I?

I actually wrote this much? Incredible! I hope I didn't break a forum rule I forgot, for fear of Darth Mandarb.

I should probably finish this one up, so thanks for making such a high-quality short game, and I hope to see any future work you pump out!
-TheCheese33