I couldn't find an overall thread. I know Ashval has a thread in his forums where he reviews the various shows he goes to. Not sure if I should post there but I figured it'd be fit for a General discussion forum.
Joaquin and I will be seeing Opeth and Katatonia in April, with Steven Wilson (of Porcupine Tree). I'm super stoked. I saw the presale link on Opeth's facebook page and immediately purchased the tickets before consulting with J. He's coming with me, like it or not!