[QUOTE=ian408;199598]Depends what you want. I use both Adobe LightRoom and PhotoShop. You could get by with just LigthRoom.[/QUOTE]
I have Adobe Photoshop Album which I think is their most basic photo program, but it doesn't handle some formats.
I came across a really nifty Freeware program called [URL="http://www.irfanview.com"][B][COLOR="Blue"]IRFANVIEW[/COLOR][/B][/URL]. I've only played around with it for thirty minutes and so far it looks good. It certainly reads more odd-ball formats than anything I've come across.