mp3.1 small upgrades advice wanted

[orph]

Pulled out my old MP3.1 to do duty as a room heater for winter replacing a old laptop as a media player in my room, just going to be used for internet,media player (ruining osx 10.11 with 18gb ram).

want to grab a SSD for it and have mixed feelings advice wanted
i can pick up a ADATA SX900 64gb for £30 but is that to small? a sandisk 120 gb for about £50 or a DREVO X1 240GB for £63 or a sandisk 240gb for £74 (all amazon uk)

tempted by the ADATA 64GB drive as it's sooo cheep but im not shore if that will give problems (never used a drive that small) or the 240GB drives seem better cost per GB and may let me stick win 7 on to play KSP and some old steam games.
but this is just a toy setup and i wont need space on it (at most VLC, Firefox,kerbal space program) if i need some space for films/music ill pick up a 1TB WD blue.

any way think i can get away with 64GB or will i need to get a 120GB+ SSD?

got to say i feel let down by the heat output of my 3.1 when i got the idea of using it as a room heater i hoped my room was going to be toasty hot but seems not

 

[ActionableMango]

64GB is way too small for OSX, Windows, and Steam games.

 

[Flint Ironstag]

240GB minimum SSD, I'd say. If you want the 3,1 to generate some heat, install a nice media library on that 1TB drive, then let Plex go to town on it. Once that's done after a few days, run SETI, BOINC, or some other useful distributed computing app. At least the energy will be going to a good cause.