You should search the forums. The pros and cons of each have been discussed at length many, many times.
Here's an excellent starting point for you: FAQ: Power Supplies Explained (Part 1)
ok here is my question
thinking on starting my carpc.
the cpu wil be something like this
pentium 3 or similar
more or lest
I been reading alot about dc to dc converters and every body is saying that is the best. but ac to dc converters cost lest money.
other issue with this is that here in Panama my home town I can not find a dc to dc comverter to my pc. I know I can get it on line but the shipment will make it even more expensive that all ready is.
so my question. what is the good and bad of using a ac to dc converters
or can any want point me to a url in thi forum that talk about this