Hello,
Thanks for writing and for considering our products - much appreciated. I believe you are in the right place - just a few days ago we officially issued a press release showing our commitment to Sharepoint - you can read the press release here:
http://www.infragistics.com/Awesome.aspx?id=9485
Or you can go directly to our Sharepoint Exemplar site
http://www.infragistics.com/hot/sharepoint.aspx
Finally, you can take a look at one cool example of building a WebPart wrapper for our controls:
http://community.infragistics.com/articles/build-custom-sharepoint-webpart.aspx
Hope this helps.