Gear Score

Hey all. I'm brand new to heroics in WoTLK 3.3.5 and I'd love to download some addons to improve my experience. I've been doing some light digging for a GS addon and cool damage meters/helpers/what ever. Do you guys have any suggestions that work? A lot of the links that I found are dead and buried. Thanks guys. :D

gearscore https://wow.curseforge.com/projects/...e/files/432528
recount(dps meter) https://www.wowace.com/projects/recount/files/808972

for future reference, you can generally find addons on google, just go with the name of the addon if you know it, and add 3.3.5 to the end.