One thing to keep in mind about the CX5 is that it's geared up for mobile presentation use -- no dedicated component inputs, 4:3 format, no way for easy ceiling mounting, etc. Between the CX5 and the HS-10, I'd get the latter simply because it's more ht "friendly" (plus it's a native widescreen format).
That being said, we have a CX5 at work, and it puts out a truly lovely picture (using a laptop DVD drive, the 15pin RGB input, and a crappy 5'x5' (?) portable screen). Also, it's small, lightweight, and very easy to set up.