Lots of options for once miket. Luckily, or unluckly as the case may be, since they cost more in the beginning too sometimes.
But you're on the right track. Getting a whole new linkage where just the rod ends are replaceable, rather than the long tie-rod entirely each time you want to replace the driver's side. Or an entire draglink when just an end is worn out.
To keep mostly stock layouts and sizes though, we sell a setup like this:
http://www.wildhorses4x4.com/product/Tie_Rod_Drag_Link_3way_Adjustable_6675yr
It fits the stock tapered holes in your steering and pitman arms, but with full adjustment capability and larger diameter rod stock.
The benefit of spending a little more now is not only that you can now center your steering with the adjustable draglink, but that in the future you only have to replace the individual ends.
We're working on getting images of the exact parts now (rather than relying on the line-drawings you see there) because there are some variations especially in the draglink where the stabilizer shock mounts. But you get the picture...
There are other options as well, such as "Heim" style rod ends, conversion to GM heavy duty rod ends with custom tubing, and other stuff as well. But this kind of thing is likely the simplest and most basic upgrade these days.
Hope that helps.
Paul