The Into Spanish Translation Blog provides a nice summary of the choices you will face when you begin translating your marketing and product information. Aside from number 3 (The cheapest translation we could find), all seven are possible ways that could work for you depending on the type of content, the number of languages, and the audience(s) you are offering the translation to.

Further, to address number 5 (A reputed translation company): I think that you have a number of excellent choices, including the one offered in this blog--any one of them may be the "right fit" for you and your project team, depending on the type of ongoing relationship you want to have with your vendor of choice. Common Sense Advisory recently published its list of the top translation companies, and this research organization is a good place to start when picking a translation company you can count on. Naturally, McElroy Translation has had a few things to say on why you should choose them.