Is there something better than ORDER BY RAND in a query?

[Boofo]

I have been researching this on the net and ORDER BY RAND is supposed to be bad to use. I can across another way to get a random item from the db, but it uses a sub-query. From what I have read, this query is faster and less server intensive on bigger tables.

$quote=$db->query_first("
	SELECT quote,name
	FROM " . TABLE_PREFIX . "quote
	WHERE quoteid = ROUND(".lcg_value()." * (SELECT COUNT(*) FROM " . TABLE_PREFIX . "quote))
	LIMIT 1
");

This is the code that I was using before:

$quote=$db->query_first("
	SELECT quote,name
	FROM " . TABLE_PREFIX . "quote
	ORDER BY RAND(NOW())
	LIMIT 1
");

My quotes table is getting bigger all the time as I add quotes to it. Is the top query (with the sub-query) actually better than the old RAND query? Or is there an even better way to do it now?