Having marketing experience is a huge leg up on the sales aspect of wine. Sales is sales wherever you are, it's just differant product. If your trying to get in on the purveyor side of things, your current skills is a leg up. I do know that a lot of wine distrubution companies are currently having trouble keeping knowledgable wine reps on their staff. With economics going the way they are wine sales on the restaurant level has dropped some. That coupled with the increase of gas prices it is making it hard to keep some reps. The reason is because the new person gets the small accounts and is stuck driving all around town to procure new ones. It can make it hard if you are on the commision level. I don't know if this trend is true everywhere, but it is here is the southeast. As far as the part time job their are many that could help. Any retailer of wine seems to be constantly looking for stockers and cashiers (especially during the holiday season). Not exactly the most glorified route but you do pick up things along the way, and get nice discounts (just a suggestion if your looking to go the sales way).