Hey all, need some advice choosing an air compressor.

There's heaps available and I know 100% for sure that a POS GMC $99 from supercrap won't do.

Generally, I want it to do light shed duties (inflating tyres, basic non-continuous tools) but on occasion I want to use it continuously for, let's say a die grinder without loosing it's huff and having to pause for a couple of minutes while it catches up...

So my question is, what would suit me? What CFM? Tank size? HP?

Would a 2.5hp 40L compressor do?

Cheers
TnP