I'm reasonably sure I just ran into a domestic house spider, judging from the size and shape, but none of the identification guides online say anything about it showing up nice and red. Actually, the identification guides I found really didn't help much. I couldn't bring up the neat one I found a year or so ago when I needed to ID the beautiful and humongous green-and-yellow web weaver underneath my old place on Summer Street.
I did, however, find a truly gruesomely creepy spider identification chart which features all of Australia's notorious arachnids, including the Funnel-Web and everybody's favorite, the Huntsman. I don't recommend clicking on that link if you've any aversion to spiders or any aversion to anything whatsoever, because not only does the page feature larger-than-life bulbous and leggy representations of the critters, but in a brilliantly sadistic artistic decision, the spider drawings will periodically wriggle from side to side. OH HOLY NIGHT TELL ME THAT ONE DIDN'T JUST MOVE.
This spider comes hot on the eight heels of the larger quarter-sized fellow who ran up my computer monitor late Saturday night (at least, I think it was Saturday.) After reassuring myself that no, it probably wasn't a brown recluse, and it didn't have the mandibles of the hobo spider, and we don't get the huntsman spider in this hemisphere, I was able to continue my computer game playing. I did have to stop playing Half-Life 2 at that point, because I was up to the part where all those ant lion bastards come out of the sand and skrabble towards you and you don't have the bug pheromones yet to tame 'em so you end up embroiled in a huge load of carapace-bustin' action. I get skittish enough when I play HL2 and Abbie brushes up against my legs, so that was right out.
I like most spiders if they're hanging out someplace where I can see them and not feel like they're gonna say hello by crawling up my leg or biting my face. Lurking spiders and ones that are hurty when they bite, however, are right out.