... and Dresden (beautiful city, and I've heard it's even better now after some restorations.

It is "even better now" � I'm from Dresden.

Dresden  surprised me with river view and
Sans Souci  palace (if my French is not correct, which i rarely so, please pardon me)

Pardon me, but Sanssouci palace and gardens are in Potsdam, near Berlin - did you mean the Pillnitz palace?

I found a curious German word Heimweh, it should be das Heimweh ?

yes, right and here is another rule:  in a composite noun like this (Heim + Weh) the article is determined by the second noun (das Weh = hurt, sickness) .  In this case it is "das Heim" as well, but that it doesn't determine the article.Another example "der Bilderrahmen" = the pictureframe, = "das Bild" and "der Rahmen".
I am kind of stuck on grammar right now, it seems .  I am studing  Spanish and spent three weeks with a girlfriend who was studying English grammar to be an English teacher - must have rubbed of.

Read'em and weep :-)

http://en.wikipedia.org/wiki/German_grammar

Come on its not that bad people will easily understand you without perfect grammar, actually the grammar of most germans i know isn't always perfect - relax

Well you can find to any language a site that one can make weep
I suppose you are dutch (correct me if i'm wrong but it's just an example anyway)
so here we go dutch grammar:
http://de.wikibooks.org/wiki/Niederl%C3%A4ndisch/_Grammatik

Well you have much more tenses in english than in german. I personally find this very difficult.
I guess every language has it obstacles for language-students.

I don't find German grammar so difficult, with the advantage that it has fewer exceptions than others.  The problems I find are the gender of the words (most of which I have completely forgotten) and that thing of having the verb at the end of the sentence (easy to do, but making comprehension very difficult). 

Regards,
Adelaide

Are German compose words like Elementarteilchen part of the language or anyone can create them?

I'd also endorse:
Goodbye Lenin, Himmer uber Berlin, and Das Leben der Anderen - are all fantastic movies.

Some other good ones are: Der bewegte Mann, Rossini and Mostly Martha.
As a way of learning the language though you could also try to track down some American movies that have been dubbed over in German - often the language will be simpler than moves that are originally in German, and the themes and storyline are probably more familiar too. Basically almost all Hollywood movies are shown in Germany with voice-over rather than subtitles so it shouldn't be too difficult.