I'd really like to run my PC from a battery (in a place where I don't have access to power outlets). Can this be done? I know almost nothing about power and electronics. I'd need two separate outlets: one for the PC (around 345 watts max) and one for the monitor (113 watts typical)… call it 500 watts total for good measure. Ideally I'd like something that could run like 8 hours or more, and warns me when the battery's low. It would also be great to connect to a solar panel, though that may be a bit too ambitious and/or expensive for me. Any suggestions?