Even continual writing on modern SSDs (which yours is) will still get tens of years of life before things start deteriorating. On OCZ drives there's also an overhead the controller uses to swap out bad sectors to further enhance the lifetime.
That's not to say that faults don't happen before then but that's true of all hardware, and let's be honest here, mostly true of mechanical disks.
I wouldn't be too concerned. Back things up as usual (when SSDs "go", they really just stop working so there's no freezer or knocking option to restabilise the platters) and you'll be fine.
Minimising swap usage is just generally good business. Add RAM if you're swapping lots.
And once you have a load of RAM, mounting /tmp with
tmpfs (a RAM-based cache) is generally a good idea. I've added this to
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0
tmpfs /var/tmp tmpfs defaults,noatime,mode=1777 0 0
That'll have the added bonus of speeding things up, but it does require you have enough RAM or you'll just be swapping to disk (and that's much slower).