Welcome to the club.
Yes, thechipboard.com is worth checking out, as you mentioned.
There's one other auction site (jackpotauctions.com), specializing in chips & silver strikes, but it is not as active as it once was. Ebay has larger selection.
If you do a google search on casino chips for sale, you will get a list of other chip sellers' websites, including a number of sites run by club members. Since the club's website is focused on club business, rather than commercial endeavors, I will refrain from naming specific sites. If you want further info, email me and let me know your areas of interest and I may be able to help further.
When you get your quarterly club magazine, there are ads from chip sellers / members. You may find some additional sources there.
Happy chipping!