Well for that sort of budget – you’re a bit limited.
However – if you’re a bit adventerous this link will turn a cheap (£35 ish) grinder into a much better one – but it null and voids any warranty.
It’s given here as specific to a Starbucks Barista – but that’s just a rebranded krupps, and braun, and lots of others. They all look the same.
http://www.ineedcoffee.com/07/hack-starbucks-grinder/
Note that mine died after 8 years of thrice daily grinds. My other half then got me one from ‘hungy donkey’ (?) that cost 4 times as much but just does the same job with no mods.
Others will be along to flame me in a minute!
#edit – the iberital (??) from the donkey crew feels much better quality to be fair. It will probably last well past 8 years. It is LOUD though.
Anyway – any Q’s – let us know