You said you have 0 graphic design skills, you just launch your own fitness company and as i guess you need a logo design asap, right? Even you start to learn about graphic design from today, will you change more logos for your company until you find the perfect logo for you.
I think is better to find a logo designer to create your logo from scratch. There a good designers out there. No need to spend thousands of dollars of course. I said all this because you have already a company.
Now if you want to start to learn, no need to buy wacom or expensive computer. Start with the basics first.
I use adobe illustrator and i think is perfect for logos and other designs. Next you can find tutorials here: http://design.tutsplus.com/categories/logo-design or you can search on youtube, google, there a lot free and good lessons around internet. The only you can do is to start searching…
Good luck! : -)