JGUT, before you purchase any battery, I would encourage you to check your parasitic draw. While many aftermarket stereo and alarms systems never cause any problems, some will have significant key-off loads, which can shorten the life of any battery. This video
explains how to measure your parasitic draw.
Given the potential electrical demands of your vehicle, I would recommend a YellowTop battery over a RedTop. Yamaha Dave, I work for Optima and while I frequently hear of folks who are having battery and/or electrical issues blamed on their battery, I'm not aware of any quality issues on our end. In fact, many of the “bad” batteries returned to us now are just deeply-discharged and work fine, when properly recharged.
The key to long battery life, regardless of brand, is proper voltage maintenance. Fully-charged, our YellowTops will measure about 13.0-13.2 volts, but when any battery is discharged below 12.4 volts and allowed to sit, suflation begins to diminish both capacity and lifespan. JGUT, if your vehicle regularly sees extended periods of non-use, a quality battery maintainer would be a good investment, with a cheaper alternative being to disconnect a fully-charged battery when you leave.
eCare Manager, OPTIMA Batteries, Inc.