If you have no equipment then I would recommend a Blue snowball mic and the Microsoft 3000 HD webcam.
If I were to record myself I would use the recording feature in windows movie maker use fraps (This is a bad idea for low end PC's since it sometimes cuts your frame rate by 10) then I would export all of to a good editing software.
For editing I like to use sony vegas but it is a little pricey, windows movie maker is ok if you just want to just remove / add clip and add sound but there are plenty of free ones on the internet that are good.