new (CHEAP!) hard drive

[blighter]

some of you may have seen my post about the new motherboard/cpu earlier today, basically, im building a new PC, and as a 16 year old who only works saturdays, i need parts as cheap as chips
i have been looking at some sites and have found some very cheap drives, but am unsure about the cache and speeds etc
i basically wanna pay £50 or under for a decent 40GB or over drive, any help would be greatly appreciated

thanks

 

[blighter]

thanks they're from OC right?

 

[blighter]

thanks for all your help guys, about the budget.. im 16 and only work saturdays, i also need some money for my holiday this year, so yes, i need as cheap as possible

the parts i'm currently thinking about are at

thanks again

Link removed as the page had loads of links that would have been against forum rules - below is the list of parts
Albatron K8X250 Pro K8
Socket 754 nVidia nF3 250 800MHz FSB ATX AGP
£26.14

motherboard
AMD Sempron 3300+ (SDA3300BXBOX)
64Bit Architecture 2.0Ghz Skt 754 Boxed
£59.47

motherboard
Kingston 512MB DDR333 PC2700
NON-ECC CL2.5 DIMM
£31.91

motherboard
Extra Value DRACULA Shiny Black Case
Silver Chrome Front & Side Panel
£43.99

motherboard
Samsung HD160JJ SpinPoint P Series
SATA-II, 160GB & 8MB Cache
£41.07