MACDAVE  Although pricey for what it does, this is a very cute addition to iChat. So, I decied to buy it, paid the 20 bucks with my Visa business card, and received an email promptly back from the developer with my registration details:

To register ChatFX please go to the Help menu and choose "Enter Registration Details" then copy and paste your info into the registration dialog exactly as it appears below:

Full Name: My Full Name

Email: My email

Registration Key: BLANK.

So, I emailed the Julian Miller, the developer back a few hours ago and still have heard nothing.

Remind me next time to spend the 20 bucks on a new toy for my hamster!!  
(Version 1.2.1)

DAN.TINIANOW  This is a fun program to play with on iChat, with a lot of options...

In my opinion, the price is too high once it crosses the $10 point. I would buy it at $10, probably, and definitely at $5. I have a feeling sales would go way up at lower price points...

If the developer doesn't drop the price, I'll keep an eye out for a deal on Maczot.com, but for now, if I want to show my iChat friends a cool effect for a minute, I don't mind a text crawl reminder to register, as I doubt I would have it active more than a minute or so. Personally, this program is a fun novelty to me, and not of as much practical use as the similarly priced (but differently functioning) ShowMacster.

I hope the developer will consider a price drop, though.  
(Version 1.2.1)