Theres really no comparison, if he goes with the HR24, he's got another RECORDER without having to use the HR34 tuners up and can do all the things the HR34 can in both set ups.
That's what I was meaning Jimbo, an HR34, HR24, and C31s at the other two tvs. If he can't get the C31s now, he could get one H25 now and add the C31 later.