The LCD screen on my husband's iPod Video cracked and he wanted to get a new iPod so I suggested 'ifixit'.
I've successfully used the tutorials before upgrading the hard drive and memory on my macbook but was slightly intimidated by the display repair. Long story short, I purchased the LCD display and tools and used the great guide and voila, 'new' iPod!
The one thing I suggest is find the right tutorial and read it step by step before even starting the repair. I think this helps sort out any uncertainty you may have along the way and feel more confident that it will be successful.