Being said the above, I think what you have bought is enough to start as modder. If you take care of heatsinking and not exceding the values recomended by the manufacturer, you acn enjoy for a while.
Being a "modder" takes time, lots of time, some "holy smoke", even money, work... It is a long road, young padawan. I recomend you to start with the electronics course publisihed right here, and take a look at historic threads published some years ago. Then it was difficult to get drivers (I can remenber that fantastic project with a Maglite and a ZX310, or the lights made by Elektrolumens... McGizmos first creations, Newbie posts, Mr.Al trying to explain electronics...)
Javier