[LAU] questions about 'LENOVO 3000 N100'

hi list, finally i got to the point to convince my girlfriend to switch from win to linux, so i am looking now in the internet for a good-price-laptop for her. since i am on ibm here and very happy with this, we are looking now for 'lenovo 3000 n100' here: http://www.notebooksbilliger.de/product_info.php/lenovo_3000_n100_megaaktio… (sorry the link is in german). so the question i have is first about the processor: Intel Core™ Duo für Mobile <javascript:popupWindow('http://indigo.intel.com/Syndication/DistributeModule.aspx?a=165&m=133&l=6&ppc_cid=GF1_0165013306','infocontent','top=200,left=100,resizable=1,scrollbars=0,width=960,height=655');> T2450 2x 2,0 GHz does anyone can recommend this processor or is there someone who could say "don't get that!" i have a celeronM here and that works pretty good for me, but i do not have any experience in setting up linux for dual-technologies. another question is about the hd: there is not specified which hd is build in, but it only makes 5400rpm. should we expect any problems on a hd with that speed? so in generally i would go for some hardware, where we can get ubuntu or sth similar installed, without too much problems. in the end the machine should be used for multimedia and some networking. i am really looking forward for some answers on this! cheers, doc