Photographing paintings

My wonderful neighbor, Kirsten Brøndum asked me to photograph some of her paintings for an art gallery submission and for her future web-site/blog. 
A great opportunity to try something new (for me) in photography.
Thanks for the challenge!

It was harder than I expected to get the light right - tried some different flash setups, but ended up using natural light only.
Once I got home and started processing the shots, it turned out that two other challenges were  perspective and barrel/pincushion distortion - not much - but those straight picture frames need to be really really straight...
Good thing I still have Paint Shop Pro 9 - it has a great perspective correction feature where you can just mark each corner of a square (like a picture frame), and it straightens it right up.
I am trying to move to Photoshop CS5, but I just couldn't find any function as easy to use for this job.

The first painting below is actually a portrait my collie"Tricky":