Personally I wouldn't bother if it is just for making a logo for your company. It represents a lot of work to get looking professional. Especially if you are going to use it in a business capacity - I'd recommend paying some nominal fee to download a vector image from any of the decent image libraries there are online now. Alternatively you could look for free image sets that could give you a head start to adapt into a logo for your company.
I guess it depends on time and resources, if you have some skills already then learning illustrator and the pen tool etc will never be wasted. But there are good sources of vector images now that could save you a lot of time and trouble.