How much are you getting the wheels for? Aren't the Aksiums on sale for cheap at PBK right now, and also at Performance for $180 or so + 10% off (plus perf. points?). I'd say get the Performance Forte Titans, but the Aksiums are probably the way to go.

If you're going to sell the wheels, the Mavic name will fetch more on eBay/Craigslist then the Forte or the Shimano R500s. I've seen lots of Mavic wheels including Aksiums get bid up to ridiculous prices. If it's a temporary wheelset, compare your price to the used ending prices on eBay. The $75 might be worthwhile if it means recouping a bigger percentage of your initial cost.