Very fine tips mate.
What I use as of now are fine brushes and a blower sometimes. and nothing more... I do regularly clean my case a I have faced some over heating problems and that was due to non cleaning of case for months.
I think Corsair and Transcend should be good enough. But dunno about the transcend Over clocking capabilities. But Corsair should be the best bet I suppose.
G11 from logitech has been an above average gamers keyboard for long and I too have it. The feel of each keystroke is fabulous and the response time too is quite good. Good enough for FPS games.
What I think is that Wii is about more of fantasy play. like you can play it for real. But PS3 is all about sheer muscle power . So I would go in for a PS3.
maybe its just I am an ardent PS fan :)