Please Check This Grammar in This Sentence(SHORT)?

There are much details which lack.....So, I am trying my best.....Here is the correct version:

I have always been interested in dealing with domestic products. And, bearing in mind that your store has such a wide range of products, I would be very honoured to manage and create posters for your store.

Needs some work. How about this:

I have always been interested in items for the home. Your store collects so many beautiful products that I would love the opportunity to create posters for you.

A great (and pretty funny) guide for grammar, spelling and writing well in general is this article:

http://www.ehow.com/how_2256802_write-things-real-good.html
Write Things Real Good

It's worth checking out, or sending to someone who needs a gentle reminder about writing well. The article includes excellent writing tips like:

*Always avoid alliteration.

*Prepositions are not words to end sentences with.

*Avoid cliches like the plague—they're old hat.

I'm sure you'll find it helpful...or at least get a good laugh.

I'm always interested in items for the home and your store collects so many beautiful products that make me really want to manage and create lots of posters for them.