I'll add that small contact prints have a charm of their own. I've just added 5x7 to my 8x10 capabilities only for the purpose of contact printing smaller prints. You might take a look at Ian Leake's portfolio of nudes for an excellent example of using both formats together well. He has a portfolio on apug I think, as well as a website. Paula Chamlee is another photographer who uses small contacts to great effect, check out her Tuscany portfolio. She uses 4x5 and 5x7 as complements to her standard 8x10. One more is Shawn Daugherty, who did a whole series of 4x5 contact prints, his Pondscum series, which are on his website. Not to mention of course the many early photographers who used relatively small film sizes and contact printed, like Sudek. If you mount them right, i.e. in large enough mounts, they can look really nice. I'm actually thinking of doing some of my earlier 4x5 work as contact prints now that Lodima paper is available. Give it a try.