I have found two tune up kits to buy, heres the two links

http://cgi.ebay.com/ebaymotors/Timing-Belt-Kit-Nissan-Xterra-2002-2004-Supercharged_W0QQcmdZViewItemQQitemZ170329177516QQ sspagenameZRSSQ3aBQ3aSRCHQ3aUSQ3a101

http://www.courtesyparts.com/nissan-timing-belt-kit-2002-2004-xterra-supercharged-p-450.html?cPath=532&

Do you guys thinks the ebay one is ok? I found it through nissan-xterra-parts.com If I can save the $75 and still have the same quailty then I am all for it.

imho theres nothing wrong with aftermarket parts....if your not insistent on using nissan-oem parts and want to save some $$ then go for the ebay deal...better yet, wait until ebay sends you a coupon code for 10% off and save even more $$....unless you are already overdue for the service, then don't wait at all