Digital BW, The Print

Hi... I have a few questions... I take digital Photos using a Toshiba 
4.2 mega pixel... some end up pretty grainy and in photoshop and 
Paintshop even using plugins I still end up with way moe grain then I 
want especially when I use greyscale. Anyone know asur trick besides 
me going in and doing all the wor by hand? and does anyone have an 
opinion on a high quality printer for medium to larger format prints? 
I had used and Epson before... and really had a hard time getting my 
paper to stay centered... Don't want to go to high a cost but would 
Like Nice Larger prints that can be done at home? does anyone know a 
GREAT site For digital photography tutorials using Paintshop or 
Photoshop? I know there are alot of graphic tutorials... but I am 
only interested in ones that deal with photography. Thankyou. Cindy