Can you suggest the best software available to learn typing... I am ready to spend about 100 hours on it...

I am not a beginner.. I see the keyboard and type currently with a speed of about 25 words per min. I want to learn to type without seeing and with accuracy. Other practical tips might also help. Thanks in Advance

I was using "Ten Thumbs Typing Tutor". It was pretty helpful for me. It goes step by step towards typing with 10 fingers. I'd suggest you give it a try.

Here's the link to the "TTTT" software:

http://ten-thumbs-typing-tutor.en.softonic.com/

If you follow the basics of any typewriting teaching course, you should be able to increase your typing speed. I never formally trained, but made sure to practice practice practice. So while my technique is not entirely correct, I can still do a mean 60 wpm. You can check out your typing speed online with this free typing test (http://www.careerstep.com/free-typing-test).