search for: guarranted

hello, i just subscribed to this list, i discovered asterisk and i would like to try it at home on my personal pc. the computer is a p4 at 3 ghz with 2 gb ram and 80 gb hdd, a 1 Mbit guarranted connection and runs a gentoo linux. i search about digium products but i can't find them in my area on any shops, i was wondering if good people here could recommend some PCI or PCIex cards for a beginner to play with one telefonic line (which i will install it soon via provider) thanks!