My first acquaintance with anything tartan at a young age was a pair of trews! 
I personally have always preferred the kilt and would probably never wear trews now but, as MOR said, some can be dashing in them with the right accompaniments!
I wonder though if it is more of a Lowland than a Highland thing - yes I know they have been worn in Monarch of the Glen. When I was in the Holyrood Palace gift shop I was informed that Lowland Regiments, who were involved in operational stuff there, had a trews rather than kilt tradition and the male staff were so attired.
Interestingly enough, the Company of Archers, the Sovereign's bodyguard in Scotland, wear neither trews nor kilt.
[B][COLOR="Red"][SIZE="1"]Reverend Earl Trefor the Sublunary of Kesslington under Ox, Venerable Lord Trefor the Unhyphenated of Much Bottom, Sir Trefor the Corpulent of Leighton in the Bucket, Viscount Mcclef the Portable of Kirkby Overblow.
Cymru, Yr Alban, Iwerddon, Cernyw, Ynys Manau a Lydaw am byth! Yng Nghiltiau Ynghyd!
(Wales, Scotland, Ireland, Cornwall, Isle of Man and Brittany forever - united in the Kilts!)[/SIZE][/COLOR][/B]
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