At only ten pages a week you would probably be better suited with the cartridges.
Less potential headaches! Especially since you wouldn't be printing enough to realize the benefits of a CISS.
Yes stick with oem cartridges. You probably mostly print black and white documents. At most get refillable cartridges and fill with dye ink to prevent clogs.
These are some of the vendors that are most recommended:
rjettek.com OCP ink cartridge plugs and much more
inkjetreset.com ink,carts,chips and more
inkjetcarts.com ink,carts,chips and more
octoink.co.uk/ ink,carts,chips and more
Hobbicolors ink,carts,chips and more
Image Specialists ink,carts,chips and more image-specialists.com/about_us.aspx
Precision Colors inks http://home.eol.ca/~mikling/
Cone Inks color & B&W inks conecolor.com inkjetmall.com
efillink.com/ ink,carts,chips and more
Thanks again to irv weiner for his listing..