Shopping for a computer to connect to our 1080i 52"Sony Wega rear projector TV (bought in ~2008). We will be using it for dvr from our antenna, watching hulu, and netflix. We have an onkyo system for 5.1 surround sound. Looking to spend $300-$400 and hoping I can snag a good deal with the upcoming pre-christmas sales. Considering the Acer Aspire Revo 3700, HP slimline S5610F, and emachine EL1352-07e. Trying to figure out if the pre-installed graphics card will be suitable for our needs. A friend told us we need a graphics card w/ at least 256MB. I really like the Acer which comes w/ a Nvidia Ion card but having difficulty figuring out how many MB it has (the online sources I've found aren't very specific). The Slimline and emachine come w/ a GeForce 6150. Having difficulty understanding the graphics card comparison chart on Tom's. The revo has an HDMI output, the others have a little more RAM and hard drive. Also interested to know which tv tuner card you'd recommend. the Acer might need an external b/c it's so compact, I've heard the internal cards are better and Haupage is a good brands. Thanks for any advice you can give.