yep ive get a couple of tools i use to record directly into me pc, sum times i just jack it straight into my mic port, using an electric, but ive also got a tascam us-122 n i have to say its an awesome piece of kit for the cost, when i bought it it was 180 pounds n that was about 2 ys ago. Ive also got a digitech rpx-400 effects pedal which has a built in soundcard and thats really good to use if your wanting effects put in, it also tailors for mics, and various lines, now that was closer to 300 quid again about 2 yrs.
I'd go for the tascam out of the two, and then purchase a copy of ik multimedia's amplitude which is just an awesome plug-in for guitar. Failing that there is the Line-6 pod, which is a total guitar fix. and another programme which i just remembered is Native Insturments Guitar rig, it's a plugin or standalone programme but u also get an outboard effects pedal.