I still have some of the parts sitting around because I'm an idiot, and from those it had:
GeForce FX5500 256 v.
Crucial 512MB DDR
A 462 AMD processor that I forget what it specifically is (Sempron I think)
60 GB HDD
I had this from around 2001-2005. It played WC3 and a bunch of old RPG's just fine, so I didn't give a shit. My dad built it for me around 2001 but I dunno how many of these parts are from that time period specifically. This was my first PC but I dunno what my parents had before that I might have fucked around with.
I personally think your lack of fun comes from just being way too ingrained into LoL more than anything else. If I were in your shoes, I probably wouldn't switch given the amount of time needed to learn DOTA2 and make the transition away from LoL.
This is about it.
Also, on the topic of denying, as a player who prefers offlaning and playing lane support the idea that you can't control the creep wave in LoL boggles my mind. Not being able to create static farm for your carry - or maintain experience range for yourself as an offlaner - sounds crazy.
You'll go through days and days of those matches. Sometimes you leave a match and instantaneously know what you did wrong and hate yourself and just leave the client/party because you know you fucked up. Other days other people do it and you have to remind yourself that you do it too.
It's the circle of Dota: everyone has bad days, makes a bad decision, or generally fucks up. Talk about it and then move on, and that's the best you can do.
~$1M is going to be pretty insane, but I did really like both Alice games and hear good things about Scrapland so... I guess I hope Spicy Horse gets to make more crazy stuff. I just dunno whether this will be the venue for that.