Not all points against flash designs are true.. Check via google xml flash websites... They are fast, usualy CMS-driven...
But designing a full-flash website isn't a task for a newbie.. It requires widespread knowledge of ActionScript, optimizing flash, and xml-data structure...
And another thing - flash designs are usually used for promo... Design studios need them, show sites, maybe some musical band... So where image comes before the content.
So consider again if u really need that...