Unlimited...LOL. Such things don't exist my friend, and lately, these marketing ploys haven't gotten a host very far...
Well, being a cherished member of FWS, I'd have to say you get what you pay for...
Hey ridetrials, tripod.co.uk does PHP4 and mySQL [probably limited at that, but nevertheless..I don't know what they mean by PHP4U, but signing up doesn't really hurt].
If it's for a personal site, and you don't mind the ads [topbanner], you can always try 0catch.com. I believe they still do 100 MB, no FP extensions, you'll have to pay for that.
FWS forums: http://www.freewebspace.net/forums/
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From my experience, it's better to go with the larger hosts, even though you will face more restrictions--however, if the host can't cope with larger levels of abuse, [like crosswinds], then don't bother.
Paying for hosting is one of the best things you can do for yourself if you want a little more leeway and features, and if you can pay monthly, do so. I recommend going to some of the bigger hosts this time because they will be more likely to be around the next day.
[and whatever you do, avoid CI Host (scammed a user and got 25 grand in USD)/DonHost (and their resellers)/FastHosts (and their resellers)]