K2 shock help

I've got an old razorback that rides pretty good, but......the original spring pull shock creaks bad and the front smart shock....well it's none to smart, in fact it's dead. Questions is....what have other done for replacing the pull shock? are there other shocks beside the noleen air version? any cheap sources?

Same goes for the front shock....any suggestions for something good an not to $$

Thanks in advance for your wisdom