USB up front
I appreciate the request for the USB connector on the back panel.
However, if the best unit for the job has it on the front, then front it is.
I have one. Two, actually.
I've thought (and written) about moving the connector to the rear.
(search on my name and "Visionsat", or maybe look in the review thread for ideas)
In the end, it wasn't really worth the effort.
Since the drive needs to be disconnected from the receiver about once a week to make DVDs, pulling out the FTA box to get to a rear connector would have been undesirable, too.
edit: if you really insist on spending considerably more money, take a look at the Coolsat 7000 or 7100.
I think it's essentially the same receiver, but with USB on the rear.
Also has some small amount of flash memory built in so it'll record or let you wind back your show, without a drive installed.
HOWEVER, once you plug in a hard drive, I don't think there is any difference.
And, I paid about $70 or $80 after rebate for a 500gb Western Digital external USB drive, which seems excellent.
So, getting a smaller one is pointless.