Hi tiKi,
I contracted an external printer to print my cards..they provided the paper..i've tried 2 different printers before - Markono.com.sg & wordimage.com.sg
u can try the shops at Bras basah for the paper u want ..if u want to print invites, buy card instead of paper.. anyway 260gsm is artcard, not artpaper ... artpaper weight max 145gsm ... there's many types of artcard, the usual ones are :
Coated
Paper - white
Card - whiet
Uncoated
Card - ivory / white
Offset printing paper
u can also try paper suppliers (go yellowpages & do a search) .. but they usually supply artcards uncut.. meaning its HUGE (about 72cm x 102cm)..
if u not intending to spend the effort to cut it to size yourself ... find paper retailers like those @ Bras Basah or source for a printer that will cut it to size & print for u..
invitation cards usually use uncoated artcard .. ivory obviously will cost more than white ones ..
hope the above information helps!