I don't recommend non 999 coins, as they can be harder to sell (in my experience), especially in Asia. Though i hear the Greeks have a thing for sovereigns. I generally recommend Pandas since they are both affordable (when purchased in their year of mintage, i.e. 2011), and they tend to rise in numismatic value quickly (apart from spot). http://forums.silverstackers.com/to...da-2011-gold-value-pack-fractionals-open.html But if you don't like Pandas, there are also Roos.
I dont think old gold coins like sovereigns, ducat, francs etc are that bad. I have a few, and they move alright here on the forum for sale section. That said I wouldnt sink serious amounts into them.... the majority of any gold holding should be bullion grade imo.
I have a soft spot for $200 gold aus coins. High stop loss, and legal tender. Id buy more if I could for a reasonable price. they are a bit hot and hard to get them cheap anymore
Nothing wrong with gold sovereigns as a starting point, thats what I started with. One of the lowest premiums over spot price.
Don't overlook HALF sovereigns if you can find them. When it comes to selling, having smaller denominations means you can sell in smaller tranches so you don't have to get out your metal saw to hack a bit from a bar. My theory is that collecting old sovereigns ( young Victoria ) will be a better investment in say 20 years when many coins will have vanished as bullion dealers send them to the melting pot and they become rarer.