I recently purchased the quickertek 12" whip antenna, and a few observations.
1> Fairly easy to install, getting stock antenna in right spot is tricky.
2> Very small antenna, undersized id say. slips inside/outside rubber protecter sleeve, so if its pulled, it wont break.
3> Didn't really do anything with my linksys54g
4> Ill post some picts when i get it back from my brother.
Anyone else have better luck with the antenna? It just seems like a waste of money