I have been trying to narrow down my search by browsing old posts here but seem to be getting more rather than less confused

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I'm after some phones for my iPhone.
I have tried some Bose over ears at a local store and thought they were an amazing step beyond what I have (Sennheiser PX200). But on searching more there seem to be questions over VFM and build quality.
They did confirm that I think over ear would suit me best. I have some Sen in ears and can't wear them for long before they become uncomfortable. And the PX200s are V tricky to keep balanced on my ears if I move.
I have tried some Denon AH 1001 and they feel good but couldn't hear them.
Other searching has thrown up Sennheiser HD212s and Audio Technica ATH ANC7s & ES7 as being in my price range, but I have no idea of their performance or suitability.
They will be mainly used on my iPhone for music an movies, plus occasional PC use and occasionally on my Onkyo HiFi. I want over ear to give me a level of isolation (my 5 year old never stops talking!) and as I may listen in bed and not want to disturb Mrs CMC68. They are not for big travel use but I do need to walk the dog which is where the PX200s fall down. One of the things I like about the Bose and Denons is that tehy are relatively compact.
Music tastes are very varied. Bowie, White Stripes, Doves, Prodigy, Fatboy Slim, Lemon Jelly, BRMC, Chemical Brothers, William Orbit, Nick Drake and Orb. Ans that's just last week.
Oh, and when I listened to the Bose phones the maximum volume semed a little low. I have seen amps for MP3s mentioned. Is that something I should consider!!!
As per title total budget circa £100
Any wisdom, suggestions, tips greatfully rec'd