cave man bub

well, i am almost a total noob to this game. i just got it like 2 days ago, adn i found this forums and heared about wall hacking. wall hacking?!?! what is that? how do u do it? from what i hear, its preety fun, but really cheap. also, wats grenade jumping?

ok , i have been thinking of getting a new comp for a while. and i have came to a decision to get a XPS. i have slighly costomized it, and i want to guys to rate and comment how it will hold to to the wear and tear of some of the new games out there. heres its stats: --Pentium® D Processor 820 with Dual Core Technology (2.80GHz, 800FSB) --Genuine Windows® XP Media Center Edition 2005 --128MB PCI Express™ x16 (DVI/VGA/TV-out) ATI Radeon X300 SE HyperMemory --1GB Dual Channel DDR2 SDRAM at 533MHz- 2DIMMs --160GB Serial ATA 3Gb/s Hard Drive (7200RPM) w/ 8MB cache --Single Drive: 16x DVD+/-RW with double layer write capability --Integrated 7.1 Channel Audio ehh?? rate me!