msula,
I use Rackspace myself.... And Josh is correct.... You gotta go with them... It's amazing how friendly they are in tech support if you have a problem. It's like COOL! We get to help another person! hehe
My site has never been down either. I have tried others and they have been the best and I doubt I would ever switch. I haven't checked their co-located prices but that is a good idea and I've been considering going that route lately. With prices dropping on servers it's a definite option. Although with co-location if something goes wrong with your server better have yer wallet ready 'cuz they aren't fixing it for you. At least for free.....
