My diehard does fine with a system,alarm,etc. Only if you have a BIG system do you have to start thinking about upgrading your battery (would be better off upgrading wiring). Search/Ask in the audio forums. They're available at most part stores.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15