you can get about 10% more performance (in 3dmark) by getting that 5770 and almost double the framerates in some games
The switches in a mouse (where you click) are only rated for so many clicks. They're not designed for a lifetime of clicking. I've worn out a mouse's left click button about every 2 or so years using logitech mice (mx300, mx310, g3). Doesn't your G5 have a warranty?
I bought this combo last week, and with 2GB of memory, it seemed to run Vista Media Center acceptably. If I were to do it again, I wouldn't skimp on the RAM.
I plugged the HDMI into my Toshiba 51H84 TV (51" projection), and it worked first boot, no configuration. I installed all the important...
I would check the power supply with a voltmeter, and if that works, start taking apart the computer. Remove the battery first, of course. If it's still wet inside let it dry, then try powering it again.