Rasta_Cook,
I got started in affiliate marketing with $18 and a bit of free time.
With $8k and all the free time in the world, you should be able to do just fine if you EDUCATE yourself about this business. Remember, it's going to take A LOT of trial and error. Don't get frustrated or discouraged by things that aren't working... rather, learn from your mistakes and don't ever repeat them.
The best advice I can offer you is to hold on to half of that 8k, no matter what happens. You might be doing fine one day, and then hit a week long slump where you aren't making any money.
Spend only a little money at a time until you're comfortable spending larger amounts of money on what you feel to be "bigger and better things". It's tempting at first to go all out, I know. But, that's also a good way to burn through your bank account and find yourself dead broke.
If you feel like you can succeed in this business, don't listen to anyone else when they tell you that you can't do it. Do what you think is best. After all, life is about taking risks and you sound like a hardcore risk taker.
Enjoy the ride. And best of luck.
If you need any help with anything, shoot me a PM.