The most obvious way to include those close to you is by asking them to be a bridesmaid or groomsman, but don't feel bad if there aren't enough spots for them all; there are other ways for them to get involved.
Putting together and mailing out complex invitations, can be time-consuming and tedious. But if you invite over some friends and make a party out of it, you can make it a fun girls' night.
For guy family members who are too old to be ring-bearers and not close enough to the groom to be groomsmen, offer them the job of ushering guests to their seats instead.
Traditionally, being the guest book attendant is one of the less glamorous wedding-day duties, but it doesn't have to be. If you have a Polaroid guest book like at this wedding, you can have a photographer friend or cousin man the station and take the photos.
If you know someone who's musically talented, but don't want them stuck at the DJ station all night, have them perform the ceremony music. It'll be much more sentimental and better quality than playing a CD or iPod.
A potluck-style dessert spread can be both personal and budget-friendly if it features your most beloved family recipes like your mom's famous peach pie and your uncle's chocolate chip cookies.
Have a cooking party or see if your aspiring chef friends will donate their culinary talents to making tasty favors for your guests. Another personal and easy-on-your-wallet solution.