About punches

Hi:

I used to work with standard peg bars (rectangle round rectangle)

http://www.lightfootltd.com/product_info.php/cPath/29/products_id/100

in a small animation studio but our paper will be finished soon...

So I will need a punch and I don´t know if the standard punch is better than round holes punch

http://www.lightfootltd.com/product_info.php/cPath/29/products_id/99

Is this last option obviously worst? it is cheaper... very cheaper :eek:

Will i find problems with this cheaper punch? Must I spend more money and buy a standard punch?

Do you know on-line stores?

I only know Cartoon Suplies, Lightfoot and Chromacolour

Can you give me links?

Thanks and excuse my poor english

Alén