I bought an 8 channel G4-8RTA-D1 intellicam unit back in september 2008, and im very happy with it. the internet viewing is somewhat speedy (you can select two streaming speeds when you login via internet explorer by right clicking on the image. one for a slow internet connections, and one for a faster internet connection). the record quality is also nice, in my opinion.
my only gripes are that you MUST use internet explorer (i cant view it from my apple machine with safari, and i prefer firefox on my PC's. i know, i know, this is how most dvr's are because of active X... blah

), and the software interface on the DVR itself could be a little more intuitive (but i still had no problem setting it up). however, i believe that 1-2 months after i bought my unit, the software was updated. im not sure if its just the remote viewing software that got a makeover, or the setup software on the dvr, too.
also, i think its supposed to come back online after a power outage. im going on 4 months of being out of town (deployed in iraq), and i had a power outage 2 months ago, in late december, and it never came back online (my neighbor confirmed that our neighborhood had an outage for about 8 hours). i do have it hooked up to a brand new UPS, which is about a 90 min power reserve, which, obviously the power outage exceeded. i havent been able to connect to it since, so havent been able to check my cameras in 2 months, and nobody is home. i know my IP hasnt changed, and i know my internet isnt down, because i have other devices at home (slingbox, etc) that i can still access. im hoping that my UPS might just have a reset button or something i need to push.
but overall, this unit is great, and i dont think youll be disappointed.
oh, and fwiw, i bought mine from mike at shoreviewsecurity and his support is GREAT. pre sale he gave me a login to his intellicam DVR so i could mess around with it and check it out. post sale he gave me his cell number to call if i needed anything. i ended up having to call him 3-4x, and each time he took the time to walk me through whatever i needed, and 2 of my calls were smack in the middle of the weekend! and the one time he didnt answer, he called me back almost immediately, ready to help. there are other dealers on the forum that are also great, too. try to get a demo login from one of them and check the machine out!
you cant go wrong either way.
i cant wait to come home next week and add some PTZ cameras to this DVR and get it back online!