No to tablets for me. They make things messy.

Get
something that supports layers. You can use your mouse very carefully
or use lines. Then you color it in with a paint bucket tool and then
color in the gaps left underneath.

practice works the best. my first renders are hard to look at compared
to current ones.

Check out this turtorial: http://baltosource.timduru.org/board/viewtopic.php?f=13&t=21585
This might help you out. ;]

You should color using the line tracing option on paint, then use the
keyboard signs, + and - to manage the size, use the magnifiying glass
and then use your mouse to trace lines along the borders. Without
interrumpting them or passing over them. Then add far more solid lines
with the liner again, on automatic black color. Save your image on JPG
to blur the images as many times as necessary. You can also do this
with a picture editing program, like Photoshop, or GIMP (Free Usage),
and blur the scratchy lines with them or simply put the colours to 16
colours and back to 24 bits and fill the simpler colours in with your.
Or from an image. You may also add some shading by darkening your
colours. But programs do this as well and is not madatory.

Yeah. Photoshop and a tablet.

To get more clean renders, you should use a editing program that
support layers, such like Photoshop , The GIMP (Thats a free editing
program BTW. Legal too) and so on. If you have any of those you could
try this; Click on 'New Layer' and make shure its transparent. Then
ink with a brush of the size you want, and nicely in it.( "Drawing"
over the lines in what you are going to render) Make shure you are
working on the right layer. After that, its just to colour it ( in the
same layer as the inking) Then, Voila. Of course, you can make clean
renders in MS Paint to, if you are patient.

Hope this
helped.

Best wishes,

~Helene

Dont make them, make decent images I.MO.

I'm sure they just have more experiance.