for price it will be tricky and require templates modification
to add buttons next to your quantity
add to the end of your main.css
Code:
.buy-now .buttons-row{float:left;margin:0px 5px}
.buy-now .quantity{float:left}
Check this in IE6 since it makes floating painful
possibly you will also need this to be added in main.IE6.css
Code:
.buy-now .quantity, .buy-now .buttons-row{width:0px}