t5 lighting

[es1887]

i am thinking about adding some more light to my tank. i want to add four t5 tubes and keep two of my vhos for their color. i have found two products that are cheap and the only difference is the ballast, but which is better.
http://cgi.ebay.com/48-Tek-Light-T5...29370ad&_trksid=p3286.m20.l1116#ht_2947wt_754

http://www.hellolights.com/index.asp?PageAction=VIEWPROD&ProdID=1369

you may have to cut and paste