the macbook pro is a good notebook for video editings. its got a core duo, 1 gig ram (upgradable), and a x1600. but u might want to wait for the new core2duo(merom core) which is suppose to be 15-20% faster then teh exisiting coreduo. the main problem is tat the macbook pro starts at about 1700 and the top of the line is around 2500. for 1500 u could go with like a dell 1505 or a regular macbook. they both use basically the same hardware, coreduo, 512-1gig ram, and the onboard intel 950 video.
one thing to really look out for is harddrive room like nfp said. but i would go for a notebook with massive hd room. 1st 2.5" r slow the faster ones are 5400rpm compared to the standard 7200rpm on 3.5", 2nd theyre expensive most desktop hd r less then 1 dollar a gig but 2.5s r about if not more then 1 dollar per gig. there are plenty of CHEAP external solution. i think last week there was a 500gb hd at costco for 150ish and a enclosure is about 30.
i dont do video editing (ve) but i do do gamin rigs which r very similar to ve setups. if ur co-work is serious about ve then i would suggest he/she look into a desktop, theyre way cheaper to get going. with 1500 u can get a pretty respectible computer.