Many of the Hilton properties have a sort of "Web TV" setup with a wireless keyboard (placed on top of the TV) that hooks up through your TV in the room. Probably best to check with each individual property you are thinking of staying at to see if they offer that. From what I've seen, it's $9.95 a day from checkin until checkout.
I haven't used this service (as I carry a laptop aka ball and chain everywhere I travel) but I understand it's somewhat clunky and uninspiring to use; however, it beats nothing if you really need to get online.
If access is really important without carrying a laptop, you might also want to try to focus on staying at Hilton Garden Inns, many of those have "business centers" (often right behind the front desk) with a free use PC in them that has hi speed access along with a printer (beware squatters that can lurk in these rooms and spend hours on FT!). I've used this on occasion to print boarding passes when SOME airlines used to give bonuses for checking in online (are ya hearin' me, AS?. Again, I'd check with each individual property to verify this before booking.