1997 F350 crewcab Budget stereo install

I'd like to put together a good sounding system for my 1997 F350 crewcab truck but I'm on a very tight budget.  What would be a good combination of amp and sub for this vehicle at a reasonable price?  I'm not looking for a competition sound system,  just something with some bottom end that sounds better than stock.  Truck already has a JVC head unit and Infinity  speakers from the previous owner.  Are the Sony Amps at Wal-mart and places like that any good??  Like I said, tight budget.

Thanks

Gimme an idea as to what your budget is for this....If I have a price range then I can help you...

Even though you are on a budget dont waste money on cheap equipment...The amps at wal-mart are almost garanteed to be refurbished equipment....

IF nothing else get everything a piece at a time....Save your money then go buy a good amp...Then save and buy a good sub and box combo.....

IF you get good equipment you will always have something....If you buy cheap stuff chances are that it will tear up and then you are just left with cheap crap....

Making the World A Louder Place

I was thinking $200-300 for the amp, same for speakers.  Can it be done??  They don't have to hear me coming 4 blocks away but I would like to feel the bass, I'd also like to tie in my existing speakers so it all sound better.

Wal-mart is a OK place to shop and do not sell refurbished car audio products. If an item is refurbished they are obligated to let the purchaser know this. (at least here they are). A Sony or Pioneer bought at Wally World is no different than the one that is bought at Future Shop / Best Buy or any other store.

Friends don't let friends buy Sony though.