dom2please

I did find a separate wire (Pair, Red + White)which reads 24vAC to ground. I have no idea what it goes to, I'm guessing some sort of security system the prior owner had installed. However since I don't REALLY know it's terminal I'm thinking better I just tap off it, leaving the wires still going to whatever, if anything.

I understand a graphics card does not leach off system memory, which seems like a good thing. What I don't have a clear idea of is where is the law of diminishing returns cross the line? I understand much of this is subjective, a lot of IMHO stuff. Nevertheless as a non-gamer (OK, so I play flight simulator, however I crash hundred million dollar aircraft faster then Obama can run up our debt) so I want to ignore gaming unless someone has relevant information I've overlooked.

In the end what do these $200+ cards offer OTHER then making games more realistic and do they offer sharper jpegs, better TV watching when connected to a Large screen LCD, and other non-gaming video?

R/R a rear solenoid is just about as easy as can be, unclip, turn, then turn again, with connector removed it just pops out. And replacing it is easy, well until I get to the part about (A) removing the air line, and (B) reinstalling it in the new solenoid. I have the brass fitting which slides over the white hard plastic line, but I have no idea how to get it back in the new solenoid....HELP!!!!