Yes, Frogg Toggs is great, you can't go wrong. It packs small and lasts, just watch out not to rip it.
I already had waterproof yet breathable pants from Coleman I bought at Walmart for about $15 on sale:
Attachment 6007
These are very comfortable and fit over existing pants or can be worn by themselves. Sometimes while riding in the mountains I put them on over existing pants if it's cold outside and they feel great. Very light as well. They have 3 snaps on the side of each pant leg to make them fit even tighter.
The Frogg Togg jacket I currently have I bought at Academy Sports store for $39, it is meant for fishermen:
Attachment 6008
It did come with detachable hood but I took it off as I don't use it (I ride with helmet). They do sell matching pants for $39 as well but I already had Coleman's. I was riding in Western NC for Memorial Day Weekend and it was chilly in the morning so I put this jacket over existing one. It kept me appreciately warmer and it was comfortable. Yet to try it in rain.
Both of these pack very small.