Thank you all for posting; and Phil, that article is very well written and very informative.
I plan on using 24p and having an extremely low budget (poor college student :P )
Also, taking what you said:
"As to whether I’d recommend its purchase really comes down to whether you realistically need the additional connectivity of the 250 over the 100."
"The problem with these things is that unless you use it as it is, off the shelf, you are asking for quite a degree of additional trouble. Improving the optics by using a groundglass adaptor implies a focus puller and a set of very expensive PL-mount primes. Recording the HD-SDI output requires more crew and gear and has complicated implications in post. But if you don’t do these things, you aren’t really doing the camera justice."
I'm not sure that I would need the additional connectivity as I wouldn't be using any other sort of studio equipment. Also, I don't think I would be able to afford adaptors or much else. I would probably just use the camera as is, and maybe in the future buy some additional equipment to go along with it. I just need to make a few short films and a variety of shots.. just so I can get started and send some clips somewhere, you know, just to get started.
So taking all this into consideration (and expense) the 250 would be too expensive for me to buy and upgrade, and the 100 seems to be a little outdated. So I'm thinking the 200 would be the best buy for me at this moment.