I think all umbrella stands are pretty easy to use. I usually fill mine with sand so the wind doesn't blow it around. These can be found most anywhere that patio furniture is sold.
You can get umbrella covers in any normal outdoor furniture store. It depends on the size of your umbrella. Check with the store where you got the umbrella .
A sunbrella umbrella is a large umbrella that you place on your patio to keep an area cool. You commonly see them at restaurants with outdoor sections. You can find out more at a site like HayNeedle.com which sells sunbrella umbrella sets exclusively.
You can find about where you can find simple garden umbrella and read information to compare prices on the internet or go to your local shops and en quire about it there.
A mini umbrella is much more portable and easy to handle in a breeze than a golf umbrella. They are also normally cheaper and easier to find when out shopping.
It is rather easy to find information about a Sunbrella umbrella at your local home and garden store. It is most likely that an employee at the store would be able to provide you with more information about the Sunbrella umbrella.
You can find an umbrella base and umbrella for your patio at Wal-mart. They have many to choose from in different styles and you most likely fine one for a good price.
You can find an aluminum patio umbrella at the following sites www.overstock.com , www.squidoo.com , umbrella.pronto.com/ , all these sites are great for buying an aluminum patio umbrella. These are the sites i found that sell these types of umbrellas.
You can find umbrella tables at your local stores such as Walmart, Target, and Menards. You may also find them on these stores websites. Sites such as amazon and e-bay will also possibly have patio umbrella tables.
Anywhere your dreams carry you.
Overstock.com has an offset umbrella for under $200 which is one of the better prices I have see for an umbrella of that type. You should check there and also Target.com.
You can find a durable and affordable umbrella at either Target or Walmart. they have a wide variety and i'm sure you'll find something that fits your needs at one of those places.
You can find solar patio umbrellas at shopzilla.com. They will show you different retail stores in your area. You could also find it at nextag.com. Just search solar patio umbrella when you get there.