Watch the Tone & Gear Tips online guitar lesson by Jeff McErlain from Take 5: Blues Bends
A note on tone: Work on your playing before getting pulled into the rabbit hole of gear. A decent guitar and amp is all you need. I tell ya, the pick in your hand has more effect on your tone than the amp can, seriously. It's a cliché, but I basically sound the same on every amp, the difference is how the amp can make me feel when playing it. If I like it I play better because it feels and sounds good, but the majority of that sound is in my hands. I'm not gonna say that the cheapo practice amp is gonna sound like my Two Rock or old Marshall. But if you have a decent amp, you are off and running.