looking for sites for ruger gp100

[weekend_plinker]

I am looking for some type of high visible sites for the gp100 and saw these. Has any one tried these and if so what did you think. If you have a better option please let me know thanks

http://www.williamsgunsight.com/gunsights/pistol.htm

http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=543904